Have had banding and sclerotheraphy done for severe hemmorhoids.now am told only surgery will help, but i want to avoid that. what else can i try?

How'd you get them?: "cure" depends on whether the original cause for hemorrhoids persists. Have you been straining at stool, have rectal dysfunction, perform an activity that increases pelvic engorgement with blood or increases pelvic pressure (heavy lifting, prolonged sitting, etc.)? Lots to consider here but it sounds like you're trying to postpone the inevitable if interventional methods short of surgery failed.

Hemmorhoid treament: If all other conservative measures have failed surgery is the correct option it can be done via thd as well speak with a surgeon you trust to decide.