The appearance of many small pimples on the face can be caused by a variety of circumstances, the main common clinical acne, allergies or sweat duct tumors, etc., need to be diagnosed and treated according to the specific circumstances. 1, acne: due to endocrine disorders, excessive sebum secretion, resulting in discharge barriers, blocking pores, and can be accompanied by Propionibacterium acnes infection, often affected by staying up late, sweet and spicy greasy food and other habits. Oral isotretinoin and minocycline, together with topical adapalene gel and erythromycin ointment, can be used for comprehensive treatment. You can also use red and blue light irradiation, photodynamic therapy, fruit acid peeling and other auxiliary treatment; 2. Allergy: If there is a clear history of allergic substance exposure or consumption, and acne is found to be the size of a grain of rice, accompanied by obvious itching symptoms, it is mostly caused by allergy, you can take oral cetirizine hydrochloride, loratadine and other drugs, with the topical application of Denide cream and other anti-allergy treatment, you need to stay away from allergens and stop using cosmetics during treatment; 3. Sweat duct tumor: If it is a smooth, flat, well-defined small papule with dense distribution in the eyelid area, sweat duct tumor can be considered and can be treated by applying iontophoresis or carbon dioxide laser. In addition, attention should be paid to the use of medication under the guidance of a doctor, and avoid self-medication. The actual fact is that you will be able to get a lot more than just a few of the most popular and popular items.