Dee, you ask about how long about the PEG incision site. I remember having a horrible time with mine, but much of it is perhaps on the type of PEG they used. Mine had toggles on either side of it that continued to dig into either side of my skin pretty deep. I also had to have extra flesh (proud flesh or granulation) burned off after treatment ended. I adjusted to it over six months, but couldn't wait to get it removed a couple weeks ago. It was again, causing me discomfort, probably because I was eating again, my stomach was pooching out and the toggles were once again digging into my skin.
Hopefully, your mother's PEG incision will heal up just fine.
Jen