A posterior deep fissure is a painful tear in the skin at the back of the anus, usually caused by constipation or passing hard stools. It is treated with a high-fibre diet, stool softeners, warm sitz baths, and medicated ointments. Long-standing cases may need a minor surgical procedure.

An anal fistula usually does not heal on its own and is best treated with a minor surgical procedure to remove or close the tract. Medicines may temporarily control infection, but you should consult a general surgeon for proper evaluation and long-term treatment.

A small pimple-like swelling near the anus that occasionally discharges thick fluid is most commonly suggestive of a fistula-in-ano (an abnormal tract between the anal canal and skin). It may not always be painful, but persistent discharge is a warning sign. It is unlikely to heal completely with ointments alone. You should consult a general surgeon for proper examination. Early treatment helps prevent complications and repeated infection. Avoid squeezing it, maintain good hygiene, and keep the area dry until you see a doctor.

Anal fistula usually requires a minor surgical procedure for permanent treatment, as ointments alone cannot cure it. External piles can often be managed with a fibre-rich diet, sitz baths, and anti-haemorrhoid ointments, but persistent symptoms need a doctor's evaluation.

Long-standing anal fissures often improve with a high-fibre diet, plenty of water, stool softeners, warm sitz baths, and medicated ointments to relax the anal muscle. However, if symptoms persist for years, a minor surgical procedure may be needed for permanent relief. So, consult a surgeon for proper evaluation.