There are two kinds of sodium chloride injection, one is 0.9% sodium chloride injection, that is, saline, if not allergic to saline, face allergy can use 0.9% sodium chloride injection on the face, but if the 0.9% sodium chloride injection allergy is not water on the face. The other is 10% sodium chloride injection, known as hypertonic salt, face allergies can not use 10% sodium chloride injection compresses. 1, 0.9% sodium chloride injection: face allergies are usually in contact with allergens, such as cosmetics, skin care products, animal fur, etc., if the 0.9% sodium chloride injection is not allergic, you can be appropriate for the compresses, can be temporarily relieved due to allergies caused by itchy skin, pain, swelling, burning and other uncomfortable symptoms caused by allergy. However, if you are allergic to 0.9% sodium chloride injection, you can’t put it on your face, otherwise it will easily lead to the aggravation of allergic reaction, and may even cause chest tightness, palpitations and other symptoms; 2. 10% sodium chloride injection: it is also known as concentrated sodium chloride, hypertonic salt, which is mainly used for the treatment of hyponatremia, and the 10% sodium chloride injection can’t be put on your face, otherwise it will exude the water from the cells to the outside of the cells, which may lead to the further aggravation of face allergy, and is not beneficial to the face allergy. Allergy further aggravated, not conducive to the recovery of face allergy. Usually need to do a good job of skin care, if the phenomenon of face allergy, should promptly go to the hospital to identify the allergens, avoid allergens. Under the guidance of the doctor can take loratadine tablets, levocetirizine hydrochloride tablets and other antihistamines for anti-allergy treatment, during the treatment period to keep the skin clean, hygiene, can not use irritating skin care products. In addition, when you go out, you need to do a good job of sun protection measures to prevent ultraviolet radiation, so as to avoid the formation of hyperpigmentation.