A little fire in the anus may lead to anal pain, hemorrhoids and anal fissures, etc. You can apply erythromycin ointment to treat it, and if the treatment effect is not good, you should also consider changing the treatment plan. Anal fire is a common phenomenon, may be due to eat too spicy stimulation, or stool is too dry and so on. Patients will experience anal itching, pain, swelling and other phenomena, which may cause hemorrhoids or anal fissure in severe cases, resulting in bleeding, severe pain and difficulty in defecation. Erythromycin ointment has anti-inflammatory, swelling and other anti-infective effect, applied to the anal area, can effectively relieve the anal due to fire caused by pain and redness and swelling and other inflammatory symptoms, but must be used under the guidance of a doctor, and at the same time, avoid spicy and stimulating food, avoid drinking alcohol and so on. However, if the patient induces aggravation of hemorrhoids, then consider treatment through oral hemorrhoid speeding tablets, external hemorrhoid cream or suppository, or external peeling and internal ligation. If anal fissure is serious and sentinel hemorrhoids are present, surgical excision and other treatments should also be performed. To summarize, it is recommended that when patients have obvious anal discomfort symptoms, they should actively consult a doctor for a clear diagnosis and give reasonable treatment. Do not blindly self-medication, so as not to cause adverse reactions.