After the change of city appear face long acne, consider and environmental changes, climate interference, dietary structure changes and other factors related to, can be through the topical drugs, oral medication, home care way to alleviate. 1. Topical medication: For patients who already have acne on their face, you can use Vitamin A cream to apply, which can regulate the differentiation of keratinocytes on the surface and dissolve acne. You can also use drugs such as benzoyl peroxide to kill Propionibacterium acnes. 2. Oral medication: For moderate to severe acne, oral antibiotics such as doxycycline, minocycline and cefixime can be added if necessary. For outbreaks of acne, glucocorticosteroid medication, such as betamethasone and prednisone, can be prescribed if necessary. 3. Family care: It is recommended that patients usually have a good dietary habits, avoid sun exposure, but also avoid the use of oily skin care products, pay attention to skin cleaning. It is recommended to use medication under the guidance of a doctor, not blindly self-medication, in order to avoid adverse effects.