Possible causes of loose skin on the face include skin laxity, aging of face and neck, etc. It can be improved with the help of medication, surgical treatment, and medical aesthetic treatment. 1. Skin laxity: congenital factors and acquired skin inflammation (e.g. eczema, urticaria, erythema multiforme) and other factors may cause skin elastin abnormalities, which may lead to the occurrence of skin laxity, appearing on the face of the skin laxity, sagging, wrinkles and other symptoms. Such patients can be treated with dexamethasone ointment, tacrolimus ointment, glycerite lotion and other medications to avoid further development of the disease; for those who have a greater impact on the appearance of the presence of facial plastic surgery and other surgical methods to help treatment. 2. Face and neck aging: excessive ultraviolet radiation, ionic radiation, air pollution, lack of sleep and other adverse factors will accelerate the aging of the facial skin, resulting in the occurrence of symptoms such as skin laxity and sagging of the face. Such patients need to pay attention to strict sunscreen and scientific cleaning and care of the skin, to ensure adequate sleep, healthy diet, and so on, and thus slow down skin aging and improve skin laxity; serious cases can be stimulated by laser treatment to stimulate skin collagen proliferation, to achieve the effect of contraction and tightening of the skin. In severe cases, laser treatment can be used to stimulate collagen growth to achieve the effect of skin contraction and tightening. Older people with obvious skin laxity can be improved by face lifting. It should be noted that the above treatments should be carried out in regular medical institutions under the guidance of specialists to avoid the occurrence of adverse reactions.