Not without treatmen. First determine what is causing the ulcer. Is it diabetic related or caused from venous disease or is it arterial or any combination. Basically being on your feet 10 hours daily is not going to help.Multilayer compression dressing is gold standard for venous ulceration and certain diabetic ulcers bit could be dangerous if there is an arterial problem. Please get the correct diagnosis first.
Depends. This depends on what kind and what is the cause of the ulcer..
Unna boot. Go see a clinic that deals with venous stasis ulcers. You need an unna boot.