Chlortetracycline generally refers to Chlortetracycline Hydrochloride, which can treat anal fissures combined with infections, but Chlortetracycline does not have a radical cure for anal fissures, and needs to be used as prescribed by a doctor. Commonly used dosage forms of gentamycin hydrochloride include ointment, eye ointment and other dosage forms. It belongs to the tetracycline class of antibiotics, with antibacterial effect. Among them, gentamycin hydrochloride ointment, can be used for purulent skin diseases, ulcerated surfaces and mild small area burn infections. Adverse reactions to this product can be seen in the form of skin redness, swelling and rash. This product is contraindicated for those who are allergic to other tetracyclines. Anal fissures are small ulcers formed by cracks in the skin layer of the anal canal, which can be treated with this drug if they are combined with an infection and are caused by pathogens that are sensitive to gentamicin hydrochloride. However, the main treatment of anal fissure is to release sphincter spasm, pain relief, promote local healing, etc., the more serious symptoms can use surgical treatment. Chlortetracycline hydrochloride does not have the effect of curing anal fissure. The presence of anal fissure need to comply with the doctor’s instructions reasonable treatment, so as not to delay the condition.