Small granular blisters on the fingers of pregnant women may be due to contact dermatitis, herpes sweat, tinea cruris, etc. The treatment of different causes is different, and should be judged by a professional doctor and guided by medication. 1. contact dermatitis: due to the special physical condition of pregnant women, if the fingers are in contact with certain allergic substances, it may cause contact dermatitis, small blisters, itching and other symptoms. In this case, the first step should be to stop contacting the relevant allergens, which can relieve the symptoms of small blisters and itching. If necessary, give glycerite lotion topical application, if necessary, give cetirizine and other antihistamines. 2. Sweat herpes: Sweat herpes is a blistering dermatosis occurring on the palms of the hands, soles of the feet, fingers, and lateral margins of the toes, and its typical lesions are small blisters that are deep in the skin, accompanied by peeling, itching, and burning. If the disease is mild, you can use local glycerine lotion, hydrocortisone cream and other therapeutic drugs; if the condition is serious, you can take oral loratadine and other drugs under the guidance of the doctor. 3. Ringworm: mainly caused by dermatophytes, superficial skin fungal infections of the hands, may also appear finger blisters, flaking, itching and other symptoms. Treatment is based on topical antifungal drugs, such as clotrimazole, terbinafine and so on. Pregnant women with small granular blisters on the fingers, should promptly consult a dermatologist for judgment and targeted treatment, not self-medication, so as not to affect the development of the fetus.