What can i use other than medical tape to keep gauze under belly (waist)?

Hi, I have sores that are taking a long time to heal and stop bleeding under my belly flap, waist area. I am trying to lose some weight, but in the mean time, I have been putting a 10 x 10 gauze pad under my belly area and securing with medical tape. It’s only been a few days doing this, but already, my skin is going very red and feeling like it’s slightly weeping, where i am taking the tape off.

I wondered if there might be anything else I can do to keep it on?

It would probably stay put anyway because of where it is, and then my trousers etc would also be around it, I’ve not tried doing that but i don’t want it to just fall off or move that freely where it may then not be covering the sore.

It does appear like it’s only above my belly where i am getting this redness, so it might be that my trousers are pulling the tape a bit so causing it to be sore maybe.

Has anyone got any advice please?

Many thanks