Surgery won't cure your crohns, you could be sick again within days or weeks of surgery. Some people go into remission for a few months, few go into remission for years. Once they take bowels out, they never grow back and you can't have optional surgery every time you get sick or you'll end up with short bowel syndrome. Surgery is an absolute last resort.
Have you tried imuran? It takes a few months to work, but helps alot of people. Probiotics and eating a natural diet also help crohn's symptoms.
You can try a special diet like The Maker's Diet or the Specific Carbohydrate Diet. Most people who give them a shot for at least a month find great improvements with their crohns. Just keep in mind not to eat anything that can obstruct, try cooking and pureeing or mashing. (ie: fruits or veggies especially).
You could also try more potent drugs like remicade. There are always risks, especially long-term, even with imuran and steroids.
Obviously, if the steroids aren't helping your crohns, you need to try something different: new meds, diet changes, natural remedies, or a combination of all three.