If foot swelling occurs, it may be due to the following aspects: 1. It is due to the application of some irritating drugs that cause an allergic reaction in the feet. In terms of clinical treatment, it is necessary to sedate compound glycyrrhizic acid monoammonium S sodium chloride injection 200ml once a day, and if necessary, glucocorticoids like compound betamethasone injection can be injected intramuscularly. If you have a swollen foot, you should immediately take itraconazole capsules or terbinafine hydrochloride tablets orally. After applying the compress, apply terbinafine hydrochloride gel for antifungal treatment.