The reasons why you get cold after drinking alcohol include symptoms caused by a cold state, drinking on an empty stomach, and other factors. 1. Cold state or possible cold: It is possible that the body has a cold or is about to catch a cold when drinking, then due to the poor physical condition of the person, coupled with drinking, you will feel colder and colder the more you drink. 2. Drinking on an empty stomach: Because of insufficient energy storage in the body, the pores dilate when stimulated by alcohol, and the amount of circulating blood is relatively small, then the cold will appear. Therefore, in daily life, we should drink appropriately, not too much, when there are symptoms such as alcohol allergy, we should stop drinking immediately, and go to the hospital for examination and treatment in a timely manner.