When a baby develops a rash that looks like a windstorm, sometimes only localized on the body, sometimes all over the body and coming and going, then the baby may be experiencing hives, so what are hives? What are hives and what should I do if my baby has hives? What are hives? Urticaria is an itchy, bumpy rash on the top of the skin that can be caused by allergies or other reasons. In most cases, urticaria goes away on its own within a few hours, but some babies experience a rash that comes and goes, disappearing in one place and reappearing in another. Some babies develop hives along with angioneurotic edema, which manifests itself as edema of the face, eyelids, ears, mouth, hands, feet, or vulva. What are the causes of hives? If your baby develops hives for the first time, they are usually caused by allergies, such as: 1) medications, such as antibiotics or aspirin; 2) foods, such as eggs, nuts, and seafood; 3) touching certain objects, such as plants, animals, or some latex; and 4) mosquito bites. In addition to allergies, hives can also be caused by infections or exposure to cold air and cold water. If you find that your baby’s hives are related to certain food or medication allergies, then try to avoid them. How are hives treated? Hives with mild symptoms usually disappear on their own within a few days, so there is often no need for special treatment. It is important to find out the cause of the allergy and avoid it. When do I need to take my baby to the doctor? 1. Your baby develops more severe hives or severe itching; 2. Angioneurotic edema; 3. Severe allergic reactions: difficulty in whistling, nausea and vomiting, abdominal pain.