Most cases of itchy red bumps on infants and children are considered to be urticaria or papular urticaria. Urticaria is characterized by limited edematous bumps that can be generalized around the body. The lesions usually do not last more than 24 hours and can subside on their own, leaving no traces after they subside, followed by recurrent attacks. Papular urticaria is characterized by a pockmarked papular rash with blistering in the middle, usually at the ends of the extremities and at the waistband. The treatment of urticaria can be oral diclaretin pellets or paracetamol and topical glyburide lotion; for papular urticaria, in addition to oral anti-allergy medication, you can also apply topical medium to weak hormonal creams such as dinaide cream, hydrocortisone butyrate ointment or mometasone furoate cream.