Itching can be a reaction to pain meds- but that would have started, and persisted ever since you've taken them. If you think it's that, then stop them immediately and call the doctor.
I had open RNY, no binder, not sure if that matters.
I am very sensitive to the adhesive on the surgical tapes. I got VERY itchy for a bit, in fact, I ended up Itching off several of my steri strips in the middle of the night, and was so afraid I might have itched the incision too- but it was fine. I am using "neosporin with pain relief" on my incision and JP drain
wound, that is working really well, no itching. (that pustule thing from the ointment you're using doesn't sound very good, I would switch). I am using paper tape to adhere the gauze pads, which is the only kind I can use with any comfort, but by the end of the day that too gets itchy, red, irritated. I've used some Aveeno oatmeal soothing bath bar soap on a washcloth in the shower, just on the sensitive skin where the tape has been, and I pat it dry, then as I am getting myself together in the bathroom, I try to keep it all open to the air as long as possible, that really seems to help to get that skin some relief.
I think if you're using a binder, that holding the ointment, and gauze and tape so pressed to your skin, is probably just making it worse. I would see if you can stop wearing it right away.
Hope this helps, hope you feel better soon! Hang in there!
5'5"tall, RNY 11/22/10, HW256 SW252 CW148 SurgeonGW160 MyGW130 5/15/2011
Met my surgeon's goal weight of 160lbs on 3/30/11! Reached 130lbs on 5/24/11!
CURRENTLY 120LBS, 9/7/11!