The pink plates, itchy, travel, disappear and come back; Edema, especially lips and eyelids, with sensation of heat and tingling. The thrust of urticaria reflects an allergic reaction which we must try to find the cause. Depending on the age Hives in children The first crisis may occur in the toddler. Bella Gold Serum Allergy to cow's milk protein may be the cause. Subsequently, medicines and food may be responsible as well as viral and bacterial infections. Urticaria accompanying viral diseases Almost all childhood diseases may be associated with outbreaks of hives: chicken pox, measles, rubella, hepatitis, etc. Some worms cause hives: helminths, moat.