Swelling of the face after red light treatment may be due to the treatment time, energy selection or skin photosensitivity, which can be improved by physical therapy, medication and enhanced care. 1. Physical therapy: red light treatment emits energy will cause slight damage to the skin, swelling after treatment is generally normal, the patient can use ice within 48 hours after treatment local ice packs to help calm the skin, to avoid localized swelling aggravation. After 48 hours of treatment, those who still have swelling can use hot towels to apply localized warm compresses to help speed up blood circulation and metabolism, thus helping to reduce swelling. 2. medication: for the face after red light swelling is relatively obvious, red light treatment area is larger patients, you can use local growth factors, vitamin e ointment and other drugs to help facial skin repair, anti-inflammatory swelling, and then help patients to improve the symptoms of facial swelling, oral hormone therapy such as prednisone if necessary. 3. Strengthen care: in the above treatment process patients should pay attention to strengthen the facial skin care to help better recovery, such as pay attention to gentle cleansing, good hydration and moisturizing work, go out to strengthen the sun protection measures; light diet, quit smoking and alcohol, eat some fruits and vegetables and vitamin C content of food, promote skin metabolism; ensure adequate sleep. It should be noted that the face is swollen after doing red light need to be treated in a timely manner, the above treatment needs to be carried out under the guidance of a physician, to avoid the occurrence of adverse reactions.