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Hi, I Visited A Podiatrist For Calluses On The Bottom

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Posted on Sun, 4 Aug 2019
Question: Hi,
I visited a Podiatrist for calluses on the bottom of my feet on XXXXXXX 19, 2019. The Podiatrist trimmed the calluses and placed something called pyrogallic acid on the calluses which turned the calluses black. The doctor said the calluses will return to normal in about four weeks and the discoloration is temporary. Is the Pyrogallic acid safe?There still a small black area on my left foot. Should I continue to wash my feet and apply Petroleum Jelly? Should I wash the foot more often to rinse it off? How much longer will the discoloration continue?
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Follow up: Dr. Asmeet Kaur Sawhney (0 minute later)
Hi,
I visited a Podiatrist for calluses on the bottom of my feet on XXXXXXX 19, 2019. The Podiatrist trimmed the calluses and placed something called pyrogallic acid on the calluses which turned the calluses black. The doctor said the calluses will return to normal in about four weeks and the discoloration is temporary. Is the Pyrogallic acid safe?There still a small black area on my left foot. Should I continue to wash my feet and apply Petroleum Jelly? Should I wash the foot more often to rinse it off? How much longer will the discoloration continue?
doctor
Answered by Dr. Asmeet Kaur Sawhney (1 hour later)
Brief Answer:
Pyrogallic acid is safe

Detailed Answer:
Hi
Welcome to ask a doctor service
I have gone through your query.
Pyrogallic acid is an antiseptic and its safe to use it on the skin.
The black speck will disappear in few days.
You should continue to wash your foot and apply petroleum jelly.
You can wash your foot twice in a day.
The discoloration will take another 10-12 days to disappear.
Regards
Dr Asmeet
Above answer was peer-reviewed by : Dr. Vaishalee Punj
doctor
doctor
Answered by Dr. Asmeet Kaur Sawhney (0 minute later)
Brief Answer:
Pyrogallic acid is safe

Detailed Answer:
Hi
Welcome to ask a doctor service
I have gone through your query.
Pyrogallic acid is an antiseptic and its safe to use it on the skin.
The black speck will disappear in few days.
You should continue to wash your foot and apply petroleum jelly.
You can wash your foot twice in a day.
The discoloration will take another 10-12 days to disappear.
Regards
Dr Asmeet
Above answer was peer-reviewed by : Dr. Vaishalee Punj
doctor
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Follow up: Dr. Asmeet Kaur Sawhney (45 hours later)
Hi,

What should I expect over the next 10-12 days? Will the discoloration fade? Will the spot get smaller? Is it OK to place the Petroleum jelly over the entire foot? Thanks!
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Follow up: Dr. Asmeet Kaur Sawhney (0 minute later)
Hi,

What should I expect over the next 10-12 days? Will the discoloration fade? Will the spot get smaller? Is it OK to place the Petroleum jelly over the entire foot? Thanks!
doctor
Answered by Dr. Asmeet Kaur Sawhney (1 hour later)
Brief Answer:
Discoloration will fade and spots will get smaller

Detailed Answer:
Over the next 10-12 days the discoloration will fade away and the spots will get smaller.
You can apply petroleum jelly on the entire foot.
Above answer was peer-reviewed by : Dr. Vaishalee Punj
doctor
doctor
Answered by Dr. Asmeet Kaur Sawhney (0 minute later)
Brief Answer:
Discoloration will fade and spots will get smaller

Detailed Answer:
Over the next 10-12 days the discoloration will fade away and the spots will get smaller.
You can apply petroleum jelly on the entire foot.
Above answer was peer-reviewed by : Dr. Vaishalee Punj
doctor
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Follow up: Dr. Asmeet Kaur Sawhney (25 hours later)
Hi, If a Podiatrist trimmed your calluses in their office to treat the calluses. Will the calluses return? What can you do to prevent the calluses from returning? Thanks!
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Follow up: Dr. Asmeet Kaur Sawhney (0 minute later)
Hi, If a Podiatrist trimmed your calluses in their office to treat the calluses. Will the calluses return? What can you do to prevent the calluses from returning? Thanks!
doctor
Answered by Dr. Asmeet Kaur Sawhney (8 minutes later)
Brief Answer:
There are very less chances for calluses to return

Detailed Answer:
Calluses are usually formed due to abnormal pressure on the foot.
If you wear a soft sole footwear, avoid prolonged standing or jogging and keep your feet moisturised there are very less chances of formation of calluses.
Above answer was peer-reviewed by : Dr. Nagamani Ng
doctor
doctor
Answered by Dr. Asmeet Kaur Sawhney (0 minute later)
Brief Answer:
There are very less chances for calluses to return

Detailed Answer:
Calluses are usually formed due to abnormal pressure on the foot.
If you wear a soft sole footwear, avoid prolonged standing or jogging and keep your feet moisturised there are very less chances of formation of calluses.
Above answer was peer-reviewed by : Dr. Nagamani Ng
doctor
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Follow up: Dr. Asmeet Kaur Sawhney (26 hours later)
Hi,

I visited the Podiatrist again today and after review of my foot it was found that this is really a viral wart with tiny black dots and not a callus. Treatment today was cryotherapy. The doctor shaved off dead skin along with the remaining black acid before the cryosurgery.

Should I continue to showering once a day and applying the Petroleum Jelly to the entire foot?

Also, should I keep it covered with a bandage until the my skin form the blister and scab?

Should I try to stay after my foot until the blister become a scab? Thanks!
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Follow up: Dr. Asmeet Kaur Sawhney (0 minute later)
Hi,

I visited the Podiatrist again today and after review of my foot it was found that this is really a viral wart with tiny black dots and not a callus. Treatment today was cryotherapy. The doctor shaved off dead skin along with the remaining black acid before the cryosurgery.

Should I continue to showering once a day and applying the Petroleum Jelly to the entire foot?

Also, should I keep it covered with a bandage until the my skin form the blister and scab?

Should I try to stay after my foot until the blister become a scab? Thanks!
doctor
Answered by Dr. Asmeet Kaur Sawhney (5 minutes later)
Brief Answer:
Keep the area covered with bandage till a scab is formed

Detailed Answer:
You can keep the affected area covered with a bandage until a scab is formed.
You can continue to shower your foot but no need to apply petroleum jelly on the entire foot.
Above answer was peer-reviewed by : Dr. Kampana
doctor
doctor
Answered by Dr. Asmeet Kaur Sawhney (0 minute later)
Brief Answer:
Keep the area covered with bandage till a scab is formed

Detailed Answer:
You can keep the affected area covered with a bandage until a scab is formed.
You can continue to shower your foot but no need to apply petroleum jelly on the entire foot.
Above answer was peer-reviewed by : Dr. Kampana
doctor
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Follow up: Dr. Asmeet Kaur Sawhney (45 hours later)
Hi,
The treatment was cantharidin. Washed off the cantharidin four hours after treatment. Two days after treatment there is no blister. However, I think the blister my have ruptured on its own.
There is some crusted scabs which seems to fall off and the treatment area seems wet. No significant burning or pain. Is this healing correctly? What should I expect in the next few days?
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Follow up: Dr. Asmeet Kaur Sawhney (0 minute later)
Hi,
The treatment was cantharidin. Washed off the cantharidin four hours after treatment. Two days after treatment there is no blister. However, I think the blister my have ruptured on its own.
There is some crusted scabs which seems to fall off and the treatment area seems wet. No significant burning or pain. Is this healing correctly? What should I expect in the next few days?
doctor
Answered by Dr. Asmeet Kaur Sawhney (45 minutes later)
Brief Answer:
Its healing correctly

Detailed Answer:
Yes it’s healing in the right direction.
These crusted scabs will dry in few days and will fall off leaving a normal looking skin.
You don’t have to pick the scabs.
Let them fall on their own.
Above answer was peer-reviewed by : Dr. Kampana
doctor
doctor
Answered by Dr. Asmeet Kaur Sawhney (0 minute later)
Brief Answer:
Its healing correctly

Detailed Answer:
Yes it’s healing in the right direction.
These crusted scabs will dry in few days and will fall off leaving a normal looking skin.
You don’t have to pick the scabs.
Let them fall on their own.
Above answer was peer-reviewed by : Dr. Kampana
doctor
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Follow up: Dr. Asmeet Kaur Sawhney (3 days later)
Hi,

Returning to doctor in seven days. There are more crusted scabs and still some slight bleeding. No significant pain. Showering daily as normal. Changing bandage once daily after showering. Trying to wear shoes that does not squeeze or put pressure on the treatment area. Is this still healing correctly? Continue using bandage until full crusted scab on treatment area? Thanks, Ulysses
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Follow up: Dr. Asmeet Kaur Sawhney (0 minute later)
Hi,

Returning to doctor in seven days. There are more crusted scabs and still some slight bleeding. No significant pain. Showering daily as normal. Changing bandage once daily after showering. Trying to wear shoes that does not squeeze or put pressure on the treatment area. Is this still healing correctly? Continue using bandage until full crusted scab on treatment area? Thanks, Ulysses
doctor
Answered by Dr. Asmeet Kaur Sawhney (25 minutes later)
Brief Answer:
Its healing correctly

Detailed Answer:
Hi
Yes it’s healing correctly.
You can continue using bandage until crusted area dries off and form a scab.
Above answer was peer-reviewed by : Dr. Kampana
doctor
doctor
Answered by Dr. Asmeet Kaur Sawhney (0 minute later)
Brief Answer:
Its healing correctly

Detailed Answer:
Hi
Yes it’s healing correctly.
You can continue using bandage until crusted area dries off and form a scab.
Above answer was peer-reviewed by : Dr. Kampana
doctor
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Follow up: Dr. Asmeet Kaur Sawhney (2 days later)
Hi,

Today is nine days after treatment with cantharidin. The treatment area is very red today. Is this healings correctly? Is this an infection? Thanks!
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Follow up: Dr. Asmeet Kaur Sawhney (0 minute later)
Hi,

Today is nine days after treatment with cantharidin. The treatment area is very red today. Is this healings correctly? Is this an infection? Thanks!
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Follow up: Dr. Asmeet Kaur Sawhney (31 minutes later)
Hi,
The redness is around site. The skin has lose its color at the spot. The site has a scab. Thanks!
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Follow up: Dr. Asmeet Kaur Sawhney (0 minute later)
Hi,
The redness is around site. The skin has lose its color at the spot. The site has a scab. Thanks!
doctor
Answered by Dr. Asmeet Kaur Sawhney (1 minute later)
Brief Answer:
Upload e

Detailed Answer:
I don’t think it’s infected.
If the redness is associated with pain, fever, oozing or pustular discharge then its infected.
Still I would recommend you to apply topical antibiotic like neosporin ointment on the affected area twice daily.
I would recommend you to upload the pictures of the affected area so that I can have a clearer picture of the condition.
Above answer was peer-reviewed by : Dr. Yogesh D
doctor
doctor
Answered by Dr. Asmeet Kaur Sawhney (0 minute later)
Brief Answer:
Upload e

Detailed Answer:
I don’t think it’s infected.
If the redness is associated with pain, fever, oozing or pustular discharge then its infected.
Still I would recommend you to apply topical antibiotic like neosporin ointment on the affected area twice daily.
I would recommend you to upload the pictures of the affected area so that I can have a clearer picture of the condition.
Note: Hope the answers resolves your concerns, however for further guidance of skin related queries consult our Dermatologist.Click here to book a consultation

Above answer was peer-reviewed by : Dr. Yogesh D
doctor
Answered by
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Dr. Asmeet Kaur Sawhney

Dermatologist

Practicing since :2007

Answered : 4993 Questions

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Hi, I Visited A Podiatrist For Calluses On The Bottom

Hi, I visited a Podiatrist for calluses on the bottom of my feet on XXXXXXX 19, 2019. The Podiatrist trimmed the calluses and placed something called pyrogallic acid on the calluses which turned the calluses black. The doctor said the calluses will return to normal in about four weeks and the discoloration is temporary. Is the Pyrogallic acid safe?There still a small black area on my left foot. Should I continue to wash my feet and apply Petroleum Jelly? Should I wash the foot more often to rinse it off? How much longer will the discoloration continue?