Severe sunburn can be repaired through general treatment, local treatment and systemic treatment. 1. General treatment: first of all, you need to get out of the environment with strong ultraviolet rays, avoid going out as much as possible, if you have to go out, it is recommended to apply sunscreen and wear sun-protective clothing and hats. 2. Local treatment: you can first cold wet compresses, and then local topical calcium-modulated phosphatase inhibitors such as pimecrolimus, tacrolimus ointment and other coated. It is anti-inflammatory and anti-itching. 3. Systemic treatment: because of the sunburn is more serious, need to take oral antihistamines such as loratadine, vitamin C, calcium gluconate, etc., or short-term small doses of oral hormone drugs such as dexamethasone. Severe sunburn is recommended to consult a doctor in a timely manner, under the guidance of the doctor for standardized treatment, to avoid adverse consequences. The medication should be used in accordance with the doctor’s instructions.