The main ingredient of Adapalene Gel is Adapalene, which is suitable for the topical treatment of face, chest and back, mild to moderate normal acne. Acne patients should clean the affected area at night before going to bed, and after drying, squeeze out a small amount of adapalene gel and apply it to the affected skin once a night, taking care not to touch the eyes or lips. The use of this medication may lead to skin irritation in the affected area, such as dryness, burning sensation or redness, and patients are advised to stop the medication immediately or reduce the frequency of its use. It is contraindicated for those who are allergic to the ingredients of Adapalene Gel, for those who are allergic to vitamin A derivatives, for patients with acute or subacute dermatitis, eczema, and for women who are pregnant or planning to become pregnant. The use of Adapalene Gel needs to be under the supervision of a doctor, and should not be used on its own to avoid adverse reactions.