Secondary white spots usually heal on their own. Secondary leukoplakia is usually caused by the discoloration of skin induced by the use of drugs later in life, such as skin contact with hydrogen peroxide, artificial fragrances, or taking certain drugs, such as antihypertensive, diuretic or cystine drugs, or leukoplakia caused by inflammatory skin diseases, such as eczema, dermatitis, etc. Leukoplakia formed in this case is usually temporary, and basically can be cured on its own. Patients with secondary leukoplakia are advised to seek medical treatment as soon as possible, and should actively treat the primary disease or detach from the disease-causing substances, avoid spicy and stimulating food, abstain from smoking and alcohol, strengthen physical exercise, and at the same time pay attention to avoiding sun exposure, which is conducive to the recovery of the disease.