A foot rash can occur due to an allergic reaction or infection. A person can treat some rashes, such as athlete’s foot and contact dermatitis, with over-the-counter (OTC) medications.

Hand, foot and mouth disease (HFMD ... Diarrhea can occur before, during or after the skin rash appears. The skin and oral lesions in HFMD do not scar, though discoloration from the spots takes ...