close up image of a little boy`s body suffering severe urticaria, nettle rash also called hives

allergic allergist bups cell chicken chickenpox chronic dark dermatographism dermatology diphteria disease edema epidemiology epidermis germ health healthcare hives infection inflammatory irritated itchy lesions mast measles medical morbilli mumps netle paramyxovirous person plague pox raised rash reaction red scratch shingles sick sickness skin sore treat urticaria varicella virus wheals zoster