Patients with perianal abscess should not drink alcohol. Long-term or excessive alcohol consumption, due to the effects of evaporation or sublimation, can cause local congestion and edema at the anus, and may also increase the risk of infection. As perianal abscess is a local infectious disease of the anus, not only should alcohol be avoided during the acute phase, but prompt surgical treatment is also necessary. If a patient with a perianal abscess does not undergo timely surgical intervention, the pus cavity may expand and the abscess may further spread and rupture, potentially forming an anal fistula. Excessive drinking could lead to worsened local inflammatory symptoms, resulting in an increase in pus and possibly enhancing pain or infection, leading to a more extensive infection in the anal area. Therefore, patients with a perianal abscess should not consume alcohol.