Small particles under the eyes need to identify the cause, which may be caused by cornu rashes, sweat duct tumors, flat warts, etc. Targeted treatments, such as physical therapy, need to be carried out under the guidance of a doctor. 1. Corns: benign swellings or retention cysts originating from the epidermis or epithelium of the appendages, manifested as yellowish-white, firm papules, usually without conscious symptoms. Usually no treatment is needed, if there is a need for treatment, physical therapy can be used to eliminate, such as the use of CO2 laser to vaporize the epidermis on the surface of the cornu, and then use a sterile needle to pick out its white content. 2. Sweat duct tumor: a benign mass. They are generally yellowish or tawny elevated plaques, round, ovoid or irregular, and generally do not require treatment. However, for those sweat duct tumors that are obviously uncomfortable or affect the appearance, freezing, electrocoagulation, photoelectricity treatment, microwave treatment and other methods can be considered for treatment. 3. flat warts: mostly caused by viral infections on the surface of the skin benign superfluous organisms, can follow the doctor’s instructions for the application of retinoic acid cream and other drugs for treatment, or choose to laser treatment, cryotherapy and other physical ways to remove. The actual fact that you can’t find any other factors that can cause the problem is that you can’t find any other factors that can cause the problem. It’s recommended that you should consult with your doctor if you are experiencing any discomfort or if your appearance is affected, and that you should be able to get the right treatment under the doctor’s guidance.