Prickly heat, also known as corn rash, is a superficial, inflammatory skin condition that is common in the summer or in hot environments. Prickly heat on the child’s neck can be treated with general treatment, topical medication and oral medication. 1. General treatment: The formation of prickly heat is caused by high environmental temperature, high humidity, and the inability of sweat to be discharged normally. You should open the windows regularly, turn on the air conditioner to reduce the ambient temperature, wear loose and breathable clothes, and keep the skin clean and dry. 2. Topical medication: Glycerin lotion and prickly heat powder can be used externally, and 2% ichthyol glycerin lotion can be used externally for pustular heat rash. 3. Oral medication: antihistamines such as cetirizine can be taken orally for obvious itching, and antibiotics can be taken orally when prickly heat infection is serious. After the child’s neck prickly heat, parents are advised to bring their children to the hospital in time, under the guidance of the doctor’s medication, do not self-medication.