Hi! my short answer is YES ! Hello, welcome to HCM and thanks for your queries! In fact, as per your description, your problem of a perianal abscess is complicated by the formation of a sinus tract; this means a blind tunnel through your normal tissue spaces where there is recurrent infections as the other end is open to the environment; the intensity depends upon local hygiene and your immunity power both of which are highly varable... Therefore, it all needs to be obliterated so that no space of infection is left meaning surgical excision is the final cure for this! Hope this answers your question. If you have additional questions or follow up questions then please do not hesitate in writing to us. I will be happy to answer your questions. Wishing you good health.