Swelling and pain after liposuction can be treated through life conditioning, the use of drugs or physical means. 1. Life conditioning: After liposuction surgery, if swelling occurs, you can wear tight pants to relieve it, to press the skin of the lower limbs, and at the same time play the role of compression and hemostasis, so as to achieve the purpose of relieving the swelling and pain. 2. The use of drugs: thigh liposuction after the swelling and pain may also be caused by infection, the patient can be in the guidance of a professional doctor, through the intravenous injection of penicillin sodium or injection ceftriaxone sodium to improve the treatment. 3. Physical means: within 72 hours after thigh liposuction surgery, cold compresses can be applied to relieve discomfort, and hot compresses can be applied locally after 72 hours to promote local blood circulation and relieve swelling and pain. When thigh liposuction surgery is needed, regular professional medical institutions should be chosen. After thigh liposuction surgery, patients’ diet should be light and easy to digest, and spicy and stimulating foods, greasy foods should be reduced or avoided to prevent affecting the patient’s surgical effect.