You spent the day lounging by the pool, and now you have an itchy red rash on your chest. Now what? Generally, rashes from a sun allergy go away on their own within 10 days. You can try an ...

Related: Heat Rash: What It Looks Like and How to Treat It Rashes from exposure to irritants can appear crusty or scaly and include lesions and fluid-filled lesions (vesicles). During more severe skin ...

The sun's UV rays can make a butterfly rash on your face worse, so always wear sunscreen. (Photo Credit: Dr P. Marazzi/Science Source) It's possible to have lupus skin rashes all over your body.