The causes of itchy feet after hot water soaking are considered to be destruction of the skin barrier of the feet, allergic skin diseases, fungal infections, as follows: 1, destruction of the skin barrier of the feet: due to high water temperature, more than 40 ℃, soaking time is too long, causing the destruction of the skin barrier of the feet, so there is dryness and itching of the skin of the feet. At this time, patients are instructed to soak their feet in water temperature can not exceed 40 ℃, and the time can not exceed 20 minutes. 2, allergic skin diseases: such as urticaria, in hot water soaking feet due to skin vasodilatation caused by increased permeability, there is a limited edematous reaction, in the clinical can be seen on the feet appear windy rash, accompanied by itching, erythema, which is common in clinical heat urticaria. In the treatment it is recommended that the water temperature of the foot soak is not easily too high, and in the case of patients who develop urticaria, topical application of topical stove glycolic lotion is recommended. If the itching is obvious, you can also take oral cyproheptadine hydrochloride tablets and Epastine tablets, in the external medicine can be applied to the mixture of mometasone furoate cream and urea vitex E cream for external use. 3, fungal infection: mainly due to hot water soaking feet after not drying the feet, causing fungal breeding infection of the feet, the emergence of tinea pedis or ringworm. For treatment, you need to dry the skin of your feet with a cotton towel after soaking in hot water. If you have tinea pedis or tinea pedis, you can also apply a mixture of bifenazole cream and tretinoin econazole cream topically, and in severe cases, you can also take terbinafine hydrochloride tablets orally.