Patients with perianal abscess can not drink beer, drinking beer will make the symptoms of perianal abscess aggravate, and drinking beer will also affect the effect of medication, which can easily lead to adverse reactions. 1. Alcohol directly stimulates the gastrointestinal mucosa, causing gastrointestinal mucosal edema and congestion. 2. Alcohol can cause gastric emptying obstacles and intestinal peristalsis to strengthen, so that food is not fully absorbed and discharged leading to diarrhea symptoms, diarrhea increased will make the perianal skin damage, aggravate the infection; also stimulate the perianal peripheral nerves, causing severe pain; diarrhea can cause the rectal intestinal tubes, anus downward, mucosal edema and vascular reflux obstacles, aggravate the pressure of the abscess lumen. 3. Alcohol and cephalosporin antibiotics, metronidazole and other disulfiram-like reaction, causing nausea, vomiting, severe anaphylactic shock symptoms. Patients with perianal abscess should pay attention to avoid eating spicy and stimulating food, avoid drinking alcohol, under the guidance of the doctor symptomatic treatment, to avoid affecting the therapeutic effect.