Reappearing Haemorrhoids. Permanently.

I have Haemorrhoids from 17-18 years, and they become active once in 2-3 years, where I have pain and bleeding and they subside on their own using OTC ointments. 3 months back I faced it after 2 years and it was severe where I had bleeding, swollen veins, pains and could not sit properly. I visited a doctor and he had prescribed Anometrogyl, Daflon tab, Enzoflam and Nexpro. It improved the situation but not completely. Then I got to know about Himalaya Pilex ointment and tab and started that and it helped a lot and my swollen veins were almost reduced. For a month it was okay and I again started facing it. This time there's no bleeding but swollen veins which hurts a lot during bowel movement. I have been using Himalaya cream and tab from 10 days but there is not much improvement. I follow a very healthy diet with sprouts, fruits, veggies being part of my everyday meal. I drink 5-6 ltrs of water every day and have workout regularly. What can I do to treat my problem permanently.