Infant neck red may be mosquito bites, eczema, hives caused by daily care, medication to improve. 1. Mosquito bites: baby’s neck after being bitten by mosquitoes, the neck will become red and itchy, parents can use diluted soapy water applied to mosquito bites, to alleviate the symptoms of the baby’s neck itching. 2. Eczema: may be caused by baby allergies and other factors, can appear skin flushing, itching, and even ulcers occur. It can be used externally under the guidance of a doctor with Denadyl cream. 3. Hives: food, pollen allergy or immunity can trigger hives, so that the baby’s neck of the local skin redness, you can avoid contact with allergens. If the symptoms of redness of the baby’s neck is more serious, you should go to the hospital dermatologist in time, under the advice of the doctor to be targeted treatment, do not blindly use their own medication, in order to avoid danger.