Foot swelling may be caused by severe fungus, may also be the use of drugs due to allergies, need to go to the hospital in a timely manner, and actively carry out drug treatment. Foot odor, that is, tinea pedis, is caused by fungal infection, when the fungal infection is serious, can cause swelling of the feet, need to take oral antifungal drugs in time for treatment, commonly used oral antifungal drugs are terbinafine, fluconazole, etc., at the same time, can be combined with the use of topical antifungal drugs. When the patient is allergic to antifungal drugs, can also lead to swelling of the feet, this time need to stop using allergy-causing drugs or switch to other types of drugs, when the condition is serious, give compound betamethasone and other glucocorticoid treatment. Swollen feet may also be secondary to tansy or other causes, it is recommended to consult a doctor in a timely manner. The use of drugs should be under the guidance of medical professionals to avoid adverse reactions.