Drinking tonics or eating improperly will be red rash, mostly considered drug or food allergies. Chinese medicine believes that “where the evil is, its gas must be weak”, due to the relative weakness of the body’s positive qi, the patient’s physique is biased, there is food stagnation, evil heat, wind-cold, wind-heat evil, so that the internal can not be drained, the external can not penetrate and reach the skin coupling (pores) between the depression, the evil and positive fight and the onset of the disease. If improper medication or diet exacerbates the bias of the body, adverse reactions may occur, such as rashes, spleen and stomach discomfort. Medical attention should be sought as soon as possible after an adverse reaction occurs. All medications should be taken under the guidance of a doctor. During the period of allergy, avoid eating hairy food, such as seafood, dog meat, etc. Avoid raw and cold food, and eat a light diet.