After the face is reddened by the sun, it is best to go to the hospital dermatology consultation and treatment, do not recommend self remedy, you can use ice and other items to local cooling and moisturizing moisturizer coated, the discomfort is serious when the need for medication or physical therapy. After the face reddened by sun exposure, you can use a towel wrapped in ice to wet compress the face to shrink blood vessels. Also apply aloe vera gel or moisturizer to keep the skin moist. In addition to redness after sun exposure, itching is more obvious, you can apply glycerine lotion, zinc oxide ointment and other astringent itching. Pain is obvious can take ibuprofen sodium capsules, ibuprofen extended-release capsules to relieve pain, before using medication to consult a doctor. Some physical treatments are also useful for redness after sun exposure, such as cold spray treatment and helium-neon laser. Avoid spicy, oily and irritating food and alcohol. When the weather is too hot, it is best to apply sunscreen or use an umbrella to avoid sunburn. If necessary, it is recommended to go to the hospital in time, under the guidance of the doctor to treat the symptoms, do not self-medication.