Depends in how much skin you want to keep.

There are aides for giving medication to cats. Dont know the name but it exists.

Like others said : towel roll

I like putting her back against my belly so she can not get away to fast. Than put pill in mouth by opening it a bit. Than keep her mouth shut a bit. To make her swallow you can pet her on the troath.

Some cats who like food a lot dont mind milled pill-dust on their diner.

There is a paste to put the pill in and it tastes better. You can buy it at the vet. Maybe in a drugstore/petstore to.