Alcohol, including beer, should not be consumed when skin allergy occurs. When skin allergy occurs, drinking alcohol will cause blood vessels to dilate, thus causing allergic symptoms to worsen, such as reddish color, itching and so on, so it is important to avoid drinking alcohol. When allergies occur, you will also take medication, which is metabolized by the liver or kidneys, and drinking alcohol will increase the burden on the liver, so it must be avoided. When skin allergies occur, you need to consult a doctor in time and avoid drinking alcohol and spicy food. If allergens can be detected, avoid contact with suspected allergens. Treatment needs to be based on the characteristic parts of the rash as well as the severity of the choice of the appropriate program, not self-medication, must be under the guidance of the doctor for medication, but also need to avoid hot and cold stimulation, skin lesions do not scratch.