Wart (medically known as common warts) can be eliminated using ointment such as retinoic acid ointment, fluorouracil ointment, imiquimod ointment, etc., but it needs to be tailored to the condition and reasonably used under the guidance of the doctor. 1. Vitamin A acid ointment: Vitamin A acid has the effect of inducing epidermal hyperplasia and anti-inflammation, which is commonly used to treat common warts in clinic. However, after the local use of the drug, there may be burning sensation, erythema, and flaking, etc. It is forbidden to use it for women in the first three months of pregnancy, and also forbidden to use it for women during the breastfeeding period, and it is forbidden to use it for those who are allergic to any of the ingredients of this product. 2. Fluorouracil ointment: this drug has anti-tumor effects, can be used for the treatment of common warts, but if the drug is not used properly may produce nausea, loss of appetite or vomiting and other adverse reactions, women in the first trimester of pregnancy is prohibited within the first three months of the drug, the immune system is prohibited. 3. imiquimod ointment: this drug has the effect of immunomodulation, anti-virus, clinically can be used for the treatment of common warts, if the improper use of drugs, the local skin can appear erythema, edema, vesicles, ulcers, flaking and other adverse reactions. It is recommended that patients use the medication in strict compliance with the doctor’s instructions, not blindly self-medication, if the external drug treatment effect is not good, but also need to cooperate with the physical therapy.