Small blisters on hands and feet are very itchy, consider and sweat herpes, tinea pedis, eczema and other factors related. It is recommended to pay attention to daily care, give antihistamine, antifungal, glucocorticoid drugs for treatment. 1. Sweat herpes: In summer, the weather is hot, the skin sweats poorly, resulting in blisters on the hands and feet, itching, mainly considered and sweat herpes related. It is recommended to pay attention to local care, avoid scratching and stimulation, external mometasone furoate cream, hydrocortisone butyrate cream, can help relieve symptoms. 2. Tinea pedis: Tinea pedis is caused by fungal infection, which can lead to localized blisters and itching. It is mainly treated with antifungal drugs, such as topical terbinafine hydrochloride gel and oral itraconazole capsules. 3. Eczema: eczema can also lead to small blisters on the hands and feet with itching, mainly to glucocorticoid drug therapy. Such as mometasone furoate cream, halometasone cream, etc., have anti-inflammatory, anti-itching, control the role of the disease. At the same time, oral antihistamines such as loratadine can be combined. Blisters on hands and feet with itching, there may be other causes, it is recommended to hospital dermatology, clear diagnosis, symptomatic treatment, drugs need to be used in accordance with medical advice.