Treating a Rash at Home
If you know what caused the rash, don't touch it again.
Wash your skin with mild soap and cool water right away, if you can. You may get rid of all or most of the problem substance. That could help cut back on symptoms.
When the rash covers only a small area, a hydrocortisone cream may be all you need for relief.
For blisters, apply a cold moist compress for 30 minutes, three times a day.
If your skin is damaged, put moisturizers on it several times a day to help restore the protective layer.
When to See Your Doctor
Call your doctor if your rash is painful or worries you, or if it isn't better after a couple of days. Your doctor will take a look and ask you questions to help figure out what's going on.
Depending on how severe it is, he may prescribe steroid pills or ointment, and an antihistamine.
If you can't avoid what's bothering your skin, talk to your doctor about wearing gloves or using creams to keep it safe.