Acid burns with sulfuric acid, hydrochloric acid, nitric acid is common, in addition to acetic acid (glacial acetic acid), chlorofluorocarbonic acid, chlorosulfonic acid, perchloric acid, chromic acid, etc., are corrosive poisons. Acid burns are examined in Chinese medicine in the following ways: I. Toxic-heat blazing Symptoms: This type is equivalent to burns of the first degree or superficial second degree, with edema of the skin, flushing, blistering or elevated body temperature, and in the severe cases, delirium of dizziness and laziness, with a red or reddish-red tongue and number of pulses. Diagnosis: 1. Diagnosis: erythema on the skin surface, redness, swelling and heat pain, blistering, severe delirium and lazy speech. 2. Pathogenesis: Heat and toxicity are blazing, heat injures the camp and blood, yin fluid is consumed, skin loses moistening to appear erythema, blisters, redness, swelling and hot pain, heat and toxicity are internalized, and if it disturbs the gods, then delirium and laziness will be observed. The number of pulse is the symptom of internalized heat and poison. Second, the heat is full of injury to the yin Symptoms: This type is equivalent to the deep second degree of burns. The skin is flushed and edematous, with a lot of oozing on the surface, self-consciousness of burning pain, sometimes low-grade fever, irritability, thirst and little water, little urine, red tongue with thin black moss, and fine pulse. Diagnosis: 1, identification: skin sore surface flushing, edema, vesicles, oozing, burning pain, low fever, irritability, thirst, low water intake, low urine as the main points of identification. 2, pathogenesis: belonging to the heat within the evil, burnt yin fluid, depletion of yin and blood; skin loss of moistening skin redness, edema, vesicles, low-grade fever, irritability. Thirst, urination, fine pulse are all caused by heat, dampness and toxin.