bumps on baby's arms and cheeks

[Michele65711]

My son was outside yesterday and developed numerous bumps (a cross between a rash and pimples) on his cheeks and arms (he was wearing short sleeves with pants).  After taking him inside, they almost disappeared after approximately 2 hours.  He had a couple of bumps on his legs, but in no way numbered like his cheeks and arms.  Today, after playing outside, he had the same thing.  There are none on his trunk or back.  Otherwise, he is acting and feeling fine with no temp.  Any suggestions?  I didn't want to rush to the doctor, as he is 15 months old, and we spend alot of time there.

[Rowena Santos, MD]

Hi,

Miliaria or sweat rash is a skin disease marked by small and itchy rashes which is common in hot and humid conditions. It occurs when the sweat gland ducts get plugged due to dead skin cells or bacteria. The trapped sweat leads to irritation, itching and to a rash of very small blisters, usually in a localized area of the skin. These rashes may occur in the face, neck, skin folds, areas of the body that may rub against clothing, such as the back, chest, and stomach. It affects people of all ages, it is especially common in children and infants due to their underdeveloped sweat glands.This can be prevented by avoiding activities that induce sweating, using air conditioning to cool the environment, wearing light clothing and in general, avoiding hot and humid weather and taking frequent cool showers .

If this persists, it would be best to have this evaluated by your doctor for proper management.  Take care and regards.