I wear the two piecs. hollister is a good brand but very hard on skin. I would try Convac Tac. once you find what work best stay with that brand. I had ractun cancer. 2 yrs ago. I would use Reliamed Adhesive remover wipes
ReliaMed Skin prep barrier wiper
Reliamed Adhesive remover wipes
Medical advesive spray
I hope this help