Calcium gluconate is mainly used to reduce exudation by improving the permeability of cell membranes and increasing capillary densification, and to provide an anti-allergic effect. However, general oral calcium gluconate is mainly used for calcium supplementation. Calcium gluconate injection is generally used for acute symptoms of allergy, oral calcium gluconate is generally not used as anti-allergy. However, if the allergy symptoms are more serious, it can be used to assist in alleviating the symptoms. Calcium gluconate is mainly because of the improvement of cell membrane permeability, reduce inflammation exudate, in fact, is not the cause of the pharmacological effect, ordinary anti-allergy is generally used H-blockers to anti-allergy.