My daughter has a stricture too; hers is due to "residual wall thickening" created when the most damaged part of her small intestine healed and scarred over. It's only a few millimeters in length, but it has led to a couple of partial obstructions, along with one full obstruction that required a hospital stay.
When she had the full obstruction, we talked to her GI about options, including resection and a balloon dilation, but we decided to handle it with a careful diet for now. The foods that have caused problems for her are corn and fresh pineapple, so we've cut those out of her diet completely, along with popcorn and whole nuts and seeds. We also peel most fresh fruits and vegetables. We are hoping to avoid resection for now, since we've heard that the areas of reattachment can scar and cause further strictures (as maybe happened in your daughter's case). And it sounds like balloon dilations may need to be repeated, and there is always the chance of perforation during the procedure.
Of course, if your daughter's stricture is really narrow and/or long, diet restrictions may not be enough to avoid blockages, so you may have to do something. It's likely that she's had this stricture for a while though--has it caused any problems so far? When my daughter has had partial obstructions, her symptoms were nausea, lack of appetite, burping, abdominal pain, and inability to poop or pass gas. When she had the complete blockage, she had the same symptoms, but also vomited every 10 or 15 minutes most of the night. After a few hours, the vomit was just green bile, and that's when we took her in to the ER.
Keep us updated after you hear from the doctor.
