I recently had surgery and got a temporary ostomy bag for 3 months.  I started off wearing Moo Moo's but they looked like house dresses and I didn't want to wear them going out in public.  I wound up gettting maternity pants and they are perfect!  The soft nylon panel expands with my bag and is comfortable around my stomach where my incisions are.  I will continue to wear these after my second surgery because both of my incisions will be opened again and the healing process will still be about 4 weeks after that surgery.  Try this is you haven't already done so.