Viral exanthemhttps://en.wikipedia.org/wiki/Exanthem
Viral exanthem is a widespread rash occurring on the outside of the body and usually occurring in children. An exanthem can be caused by toxins, drugs, or microorganisms, or can result from autoimmune disease. Many common viruses can produce a rash as part of their symptom. Varicella zoster virus (chickenpox or shingles) and mumps should be checked for the treatment.

Treatment ― OTC Drugs
OTC antihistamines may help with rashes and itching.
#Cetirizine [Zytec]
#Diphenhydramine [Benadryl]
#LevoCetirizine [Xyzal]
#Fexofenadine [Allegra]
#Loratadine [Claritin]
  • Rash of rubella on the skin of a child's back.