Perianal abscess belongs to the category of “anal carbuncle” in traditional Chinese medicine, Xianfang Vitality Drink can treat anal carbuncle, and should be used according to the doctor’s instructions. The anal carbuncle is characterized by acute onset, severe pain in the perianal area, accompanied by chills and high fever, and anal leakage can be formed after the rupture of the carbuncle. The treatment of anal carbuncle is to clear away heat and detoxification (to remove heat and toxicity from the body) if it is a case of heat and toxicity; to clear away heat and detoxify pus if it is a case of fire and toxicity; to nourish yin and clear away heat (to nourish yin and remove heat) if it is a case of yin deficiency and toxicity; to nourish yin and clear away heat and detoxify the body. Xianfang Lifesaving Drink is composed of Angelica dahurica, Semen dahurica, Fenghuang, Paeonia lactiflora, Angelica sinensis, and so on. It has the efficacy of clearing heat and removing toxins, subduing swelling and ulceration, activating blood circulation and relieving pain (relieving pain by removing blood stasis). It is used for treating Yang evidence of carbuncle ulcers and swollen toxins at the beginning. Redness, swelling and burning pain, or body heat and cold, with thin white or yellow coating and strong pulse. Therefore, Xianfang Lifesaving Drink is effective in treating carbuncle with heat and poison, but it should be used under doctor’s supervision. This formula is used for carbuncle before ulceration, if it has been ulcerated can not be used; Yin evidence of sores and ulcers should not be used; qi and blood deficiency, spleen and stomach should be cautious of using this formula.