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What Causes Allergic Rash On Arms?

Posted on Fri, 24 Oct 2014

Question: I have this rush that just came yesterday. I traveled from las vegas to new york where is humid. I wonder if that has something to do with it. This is in my arm as you can see in the picture. No other area in the body or any other simptoms. It feels a little warmer that area to the touch.

Answered by Dr. Bhagyalaxmi Nalaparaju (2 hours later)

Brief Answer:
Advised anti histamine.

Detailed Answer:
Hello XXXXXX,

Yes, humidity or heat can cause rash.

I have seen your image. It looks like allergic rash may be due to insect bite or due to wearing tight clothes or heat rash.

I suggest you antihistamine like cetrizine 5 mg twice a day which is available over the counter in most of the countries.
Along with I suggest you Caladryl lotion, apply thrice a day.
You can use cool compression.
You need not to worry. It will disappear within 2 days.
If you will not feel better after 3 days then you need to visit your doctor or a dermatologist for clinical examination and doctor would prescribe topical steroids.

If you have any queries I will be happy to help you.
Thank you.

Above answer was peer-reviewed by : Dr. Bhagyalaxmi Nalaparaju

Follow up: Dr. Bhagyalaxmi Nalaparaju (3 hours later)

Thank you ! That helps!

Answered by Dr. Bhagyalaxmi Nalaparaju (1 minute later)

Brief Answer:
It's My pleasure.

Detailed Answer:
Hello XXXXXX,

I was glad to help you.

If you have any queries I will be happy to help you.

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. Bhagyalaxmi Nalaparaju