Blisters in the medical specialty word for blisters. Symptoms of cement allergy itchy hands with small blisters when topical medication and oral medication if necessary. Also need to pay attention to daily hand care. After contact with cement, itchy hands, accompanied by small blisters symptoms consider allergic dermatitis caused by allergic dermatitis refers to the patient’s contact with allergens caused by allergic dermatosis, common allergens are pollen, mites, hair, cement dust, etc., which can be manifested as localized erythema, itchy, pimples, oozing, and so on. Treatment first remove the causative agent, prevent re-exposure; you can use glycerine lotion external coating, heavy cases can use 1% chlorhexidine solution wet compresses, to be scabbed and then coated with erythromycin ointment. Secondly, patients with mild cases can use antihistamines, such as loratadine tablets or cetirizine hydrochloride tablets orally. Daily life should pay attention to the use of warm water to wash the skin lesions, avoid the water temperature is too cold or too hot, try not to use alkaline skin care products to clean the skin, to avoid re-exposure to allergens. Diet should minimize spicy stimulating, greasy and seafood foods to avoid triggering allergic reactions.