Lips by the external impact after the swelling state, you can first use an ice towel for cold compress. Half an hour or so to change to a hot towel hot compress, not only can prevent lip swelling, but also accelerate the absorption of the swollen parts, can relieve the pain caused by the external impact later. If the impact area is more obvious, there is epidermal damage, you need to choose to use iodophor solution to disinfect. Then use a hot towel to apply a warm compress, which can accelerate the absorption of subcutaneous fluid in the lip area, thus reducing the swelling. You can also apply tacrolimus ointment or pimecrolimus cream locally, which are immunomodulators that can accelerate local fluid metabolism and absorption to achieve the desired therapeutic effect. However, do not blindly use hormone ointment to prevent glucocorticoids from stimulating the skin mucosa and forming hormone-dependent dermatitis.