Infant facial heat rash is usually treated by adjusting the right temperature, keeping the skin clean and medication. 1. Adjusting the right temperature: Infants with facial heat rash, also known as prickly heat, are mostly associated with humid environments and poorly regulated indoor temperatures, resulting in inflammatory rashes, which can be alleviated by reducing the amount of clothing. 2. Keep the skin clean: parents need to pay attention to if the baby has the above symptoms, you need to use warm water every day to wipe to keep the skin clean, do not scratch to avoid secondary infection. 3. Medications: If the above treatments fail to improve the condition, zinc oxide ointment and glycerite lotion can be used as prescribed by the doctor. The above medications are recommended to be taken under the guidance of a doctor and should not be used on their own.