I was going through MEM beginning a month long TPAC trip. I had a few creams, jells in a one quart zip lock and another one quart zip locked clearly marked "medical items". Everything in it was under 3oz and it contained lens solution, eye drops, prescription nasal spray, extra contact lenses. The TSO looked at it and said that everything needed to be prescription and that I would have to have a special search of the bag. I told him that everything in it was on the TSA approved list for medical items. He asked if everything was prescription drugs. I said everything was on the approved TSA list for medical items. He said everything had to be prescription. And so it went through the X-Ray. Another TSO looked at it and said that it was OK. In fact she pointed out that an extra nasal spray that I had in my non medical baggie could have been with the medical items. She said she had to look at the "medical items" baggie because the TSO who had raised it as an issue was the supervisor. I guess I was lucky that the supervisor didn't look at the baggie because I probably would have lost all the stuff I needed for the plane.