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What Causes Itchy Large Red Rash Spreading From Armpit To Bottom Of Ribs?

Posted on Mon, 19 Jan 2015

Question: Overnight I developed an itchy large red rash on my left side, from armpit to the bottom of the ribs. There is a much smaller red area (also itchy) on my right side (same general area). The large rash has some raised lines (like a small trail) and a bunch of red areas, with a couple of very small white spots.

Answered by Dr. Dr. Rahul Kumar (1 hour later)

Brief Answer:
contact dermatitis

Detailed Answer:
Hello
Thanks for the query and photograph.
It is looking like contact dermatitis.
Apply calamine lotion and take an antihistamine tablet like cetrizine. You will get good response.
Let me know if you have any other doubts.
Thank you

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

Follow up: Dr. Dr. Rahul Kumar (18 minutes later)

You also looked at the photo, right? I am wondering how that could be - my side is not something that should contact allergens. I had a shirt on all day (winter activities). Why would it not be in places that could actually contact something. No new clothes.

Answered by Dr. Dr. Rahul Kumar (12 hours later)

Brief Answer:
contact dermatitis or insect bite

Detailed Answer:
Hello
Thanks for the follow up.
Yes I have seen the photograph.
It can be either contact allergy or insect bite.
The appearance is typical.
Raised itchy localized area.
Please follow the advice you will get good response.
Let me know if you have any other doubts.
Thank you

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. Chakravarthy Mazumdar