I too find my lower abdominal area has more sensitive skin than my back.
The techniques I have used are
- Cavilon spray. This is a barrier spray so provides some protection against the glue. I accidentally bought Cavilon cream the first time. It worked and was cheaper than the spray. But it was greasy and if I put a micron too much on the glue didn't hold at all.
- Care when removing my pump. I don't find I need to fork out for any additional sprays and potions for removal. I always remove the pump in a hot shower. I slowly peel a small corner of the tape off and then let the hot water loosen the glue, Then I slowly peel the whole thing off. I avoid the "rip it off" approach because this can take skin with it.
- Hair removal. For me, the lower abdominal area is hairier than my back and the affect of hair growth under the glue can cause problems. As shaving removes the top layer of skin, I shave the next site for my pump the day before the site change.
- Don't scratch. For me, this is the hardest thing but as there is slightly less skin where the pump has been, a scratch will have a greater impact.