A strep throat is a bacterial infection of the throat (pharynx), tonsils or both caused by the bacteria group a streptococcus.Unfortunately common usage has deteriorated to mean sore throat in general. This is inaccurate. Many more viruses cause sore throats than streptococcal bacteria. Fever & sore throat for more than 2 days without cold symptoms suggests possible strep. A culture is best diagnostic test.Hives (also called urticaria) are a common skin reaction in children, characterized by a raised, flat pink rash called wheals. The shape of these bumps can vary, and their size can range from about one-half inch to several inches in diameter. The larger wheals often have pale centers. In most cases, hives are caused by allergies. Foods like shellfish, milk, peanuts, or chocolate can trigger them. So can insect bites or drugs like penicillin. In winter some children develop hives when they are exposed to cold air. Occasionally, children with a strep throat will have hives. I would give an antihistaminic syrup and a lotion to apply to reduce itching. As you are already giving medicines continue and review with your doctor. Take care