Skin Allergies and Contact Dermatitis: The Basics
How Is Contact Dermatitis Treated? continued...
The rash will often clear up within a few weeks. But you'll still be allergic, and the redness and itching could come back if your skin touches the wrong thing.
Most skin allergies aren't life-threatening. But in some rare cases, a severe reaction called anaphylaxis might quickly spread throughout your body and make it hard to breathe. Call 911 if your lips start to swell or itch or you feel short of breath.