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what causes rashes on the posterior side of my right thigh?

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Posted on Tue, 24 Mar 2015
Question: Hello! I was on here recently asking about a rash i have on the posterior side of my right thigh. I went to hot yoga over a week ago and then jogged the next morning and the result was raw feeling skin in that area while in the shower. Now i have a red mark/area that will not go away. I have been to the dermatologist who gave me cream that i have been using. It hasnt really had too much of an effect on it. I am worried this is indicative of something more serious such as lupus or leukemia as the joints in my hands and fingers have been achey/throbbing recently especially in my thumbs. I have attached a picture of the rash. It does not itch at all, either i dont feel it or it burns at times. The rash has now been there since last saturday so a bit over a week. Thank you again for your help!
doctor
Answered by Dr. Muhammad Ahmad (3 hours later)
Brief Answer:
It looks like friction rub/mild contact dermatitis

Detailed Answer:
Hi,

Thanks for writing back,

I am Dr.Muhammad Ahmad, Resident M.D. I have read your question and have seen the pictures you have uploaded closely, I understand you concern and will try to address it in best possible way.

Your history and the picture suggests that it is a friction rub or mild contact dermatitis , these area are very typical for people who jog wearing long nickers or trousers which are made up of stuff which causes friction.

This friction is not really felt at that time but late body responds to it , skin gets red after 2-3 hours and gets dark brown later, but with time this goes off.

I will encourage you not to panic and give it some time, it will get better in 20-30 days and will disappear in a couple of months.

What you can do is to use good chemical free emollient like petroleum gel and protect it from further injury or friction , this will get better in 20-30 days, there is no way to cure it immediately, natural skin turn over will repair it.


I would also encourage my patient to take vitamin-E daily this helps in skin turn over.


Hope I have answered your query. If you have any further questions I will be happy to help if not then don't forget to close the discussion and rate it.
Wishing you good health !!

Regards.

Dr.Muhammad Ahmad

Resident M.D.


Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
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Follow up: Dr. Muhammad Ahmad (9 minutes later)
Thank you for your answer. I am concerned due to the achiness i am feeling in my fingers and hands that are worrying me...hopefully it isnt related. Also, i would like to continue jogging but am afrait to do so. Do you think the achiness in my joints of my hands and arms are related? And when can i continue jogging again? Thanks again! Again...im just worried this might be lupus or something bc of the achiness.
doctor
Answered by Dr. Muhammad Ahmad (11 minutes later)
Brief Answer:
This doesn't seem ti be lupus

Detailed Answer:
Hi,

Thanks for writing back,

Achiness doesn't seem related , lupus has a different rash.. its rash is on face called butterfly rash..then it affects full body not just a part of leg which comes in contact with the jogging track suits.

Lupus effect kidneys lungs everything and its rash is different... there are full migratory body aches joint aches lethargy and mild low grade fever ..weight loss malaise...


Achines might be temporary if it doesnt settle in a couple of weeks then you can talk to your doctor about it other wise in my opinion this doesn't seem ti be a big issue.

Still if you are anxious there is always an option to get antibody workup done for lupus..arthritis and other issues...you can discuss your doctoe about this.


You can continue jogging without any expected problem.

Wear some easy lose track suit something which doesn't cause much friction and acts easy on your skin. Things should stay fine and if more friction doesn't damage this are..this dark brown colour will go in a couple of weeks.

Stay blessed with you health.

Regards..

Dr.Muhammad Ahmad.

Resident M.D.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
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Follow up: Dr. Muhammad Ahmad (17 minutes later)
Thanks again for your answer. I think I freaked myself out by googling my symptoms and the first thing that came up was leukemia and lupus. Im glad you dont think its either of these...hopefully. Like i said only the joint aches in my thumbs and hands are worrying me in terms of something serious such as leukemia but i know i am being ridiculous. Thank you so much for your help. I didnt realize that a friction rash could take so long to go away.
doctor
Answered by Dr. Muhammad Ahmad (5 minutes later)
Brief Answer:
stages of friciton rub

Detailed Answer:
Hi,

Thanks for writing back,

Here are the stages if friciton rub , they may differ in people but usually thats how it goes..


1- Vigorous activity.

2- Appearnce if a pinkish red rash.. which burns ..burns more on touch.

3- Gets darker and hardens in next 2..3 days..

4- gets darker and with time gets softened and pain or burn free..

5- in a month or so returns back to normal.

Is this how your rash went?


you might also want to know other symptoms of lupus and leukemia ..if just thumb finger pains were criteria..almost 60% of world's population would be having lupus ir lukemia at some stage of their lives,

Do you want me to help you summarize and understand how both these diseases menifest?

waiting for your input.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Muhammad Ahmad

General & Family Physician

Practicing since :2012

Answered : 1308 Questions

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what causes rashes on the posterior side of my right thigh?

Brief Answer: It looks like friction rub/mild contact dermatitis Detailed Answer: Hi, Thanks for writing back, I am Dr.Muhammad Ahmad, Resident M.D. I have read your question and have seen the pictures you have uploaded closely, I understand you concern and will try to address it in best possible way. Your history and the picture suggests that it is a friction rub or mild contact dermatitis , these area are very typical for people who jog wearing long nickers or trousers which are made up of stuff which causes friction. This friction is not really felt at that time but late body responds to it , skin gets red after 2-3 hours and gets dark brown later, but with time this goes off. I will encourage you not to panic and give it some time, it will get better in 20-30 days and will disappear in a couple of months. What you can do is to use good chemical free emollient like petroleum gel and protect it from further injury or friction , this will get better in 20-30 days, there is no way to cure it immediately, natural skin turn over will repair it. I would also encourage my patient to take vitamin-E daily this helps in skin turn over. Hope I have answered your query. If you have any further questions I will be happy to help if not then don't forget to close the discussion and rate it. Wishing you good health !! Regards. Dr.Muhammad Ahmad Resident M.D.