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A 37-year-old female asked:

Hi, my 10 year old son has a rash that looks slightly lumpy (swelling looking) all over his arms, back and legs. it's slightly itchy. he has no history of skin condition. could it be just allergy?

2 doctor answers5 doctors weighed in
Dr. Amrita Dosanjh
Pediatric Pulmonology 36 years experience
Probably: The allergic reaction may be controlled by using a children's antihistamine such as Benadryl, dosed for his weight. Please consult with your pharmacist. The other possible causes include an infection of the skin. Please see your pediatrician or have a virtual consult with Healthtap. You may upload a photo during the consultation. Avoid dust, contact with animal dander and use a gentle soap.
Dr. Holly Maes
Pediatrics 36 years experience
Yes,could be allergy: Sounds like hives or other type of urticaria rash. Treatment is easy - give diphenhydramine until rash gone for 24 hours. Follow bos for dosing instructions. Finding out cause is not so easy....about 70% of time can't figure out what the culprit was. Keep track of what he's eating and doing prior to onset of rash if it recurs. It can be a food, but also can be things like being out in the cold!

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Last updated Dec 23, 2020

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