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What Causes An Itchy Blister On The Penis Shaft?

Posted on Sat, 1 Oct 2016

Question: two days ago I experienced itching on the top side of my penis shaft. Later that day it formed into a lone blister. I have had a few safe sex encounters recently anf I am currently on antibiotics for an unrelated issue. I will attach a picture . Can you help?

Answered by Dr. Asmeet Kaur Sawhney (46 minutes later)

Brief Answer:
Either drug reaction or friction dermatitis

Detailed Answer:
Hi
Thanks for being at healthcaremagic
I am Dr Asmeet Kaur Sawhney, a dermatologist.
I have reviewed the attached photograph and it is looking like either a drug reaction to the medicines you are taking or a friction dermatitis.
If I was your treating doctor I would recommend you to apply cortisone cream on the affected area twice daily and take antihistaminic like tablet Chlorpheniramine maleate 4 mg once daily at bedtime for 5-7 days.
This should resolve the lesion.
Regards
Dr Asmeet

Above answer was peer-reviewed by : Dr. Raju A.T

Follow up: Dr. Asmeet Kaur Sawhney (3 hours later)

Thank you so much

Answered by Dr. Asmeet Kaur Sawhney (0 minute later)

Brief Answer:
Welcome!!

Detailed Answer:
Welcome!!
All the best!!

Above answer was peer-reviewed by : Dr. Raju A.T

Follow up: Dr. Asmeet Kaur Sawhney (19 hours later)

hi ...l last night the blister opened up prior to that I noticed discoloration to the penis head. could this also be results of the antibiotics that I am taking?

Answered by Dr. Asmeet Kaur Sawhney (20 minutes later)

Brief Answer:
Yes discoloration is also a side effect of antibiotics

Detailed Answer:
Yes discoloration prior to the appearance of blister is also a result of drug reaction to the antibiotics you are taking.

Above answer was peer-reviewed by : Dr. Prasad

Follow up: Dr. Asmeet Kaur Sawhney (53 minutes later)

Thank you ..rhis has become worrisome

Answered by Dr. Asmeet Kaur Sawhney (5 hours later)

Brief Answer:
Welcome!!

Detailed Answer:
Don't worry as it will be fine in a week's time.
You should also stop taking the antibiotics responsible for the same.

Above answer was peer-reviewed by : Dr. Yogesh D

Follow up: Dr. Asmeet Kaur Sawhney (16 hours later)

i am sorry to continue bothering you about this but I am sending a new picture....is this consitant with the drug reaction?

Answered by Dr. Asmeet Kaur Sawhney (8 hours later)

Brief Answer:
Yes this is also consistent with a drug reaction

Detailed Answer:
I have analysed the newly uploaded picture and this is also consistent with a drug reaction.

Above answer was peer-reviewed by : Dr. Nagamani Ng

Follow up: Dr. Asmeet Kaur Sawhney (17 hours later)

one last correspondence before i get this issue checked...some of the surface skin has pealed back and it has become tender, raw and a little painful to the touch similar to friction a burn but there was friction activity...i finish off my antibiotics today for the unrelated issue....any re-assurances would be helpful

Answered by Dr. Asmeet Kaur Sawhney (8 hours later)

Brief Answer:
Once the antibiotics are stopped the condition will start improving

Detailed Answer:
All the symptoms you are having are suggestive of drug reaction.
Once the antibiotics are stopped the condition will start resolving.
You can apply a topical antibiotic like neosporin ointment or mupirocin cream on the affected area twice daily for 5-7 days.
This will help in faster healing of the affected area.

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. Nagamani Ng