Hi, I have been on HRT patches for a week now, I had such a problem keeping them on, thanks for the advice to use "Tegaderm Film 6cm x 7cm", it really does help keep them on and they are waterproof, so hopefully my HRT patches will get a chance to work now, I think when these patches are given to you by the Doctors, they are more aware that loads of people find it hard to keep them on and to advise you to use Tegaderm to keep them on, it would have helped me to know this before starting to use them, as I only came on this site after I started using them, I was given this website details at my appointment, my Nurse is phoning me back on Wednesday to see how I am getting on, hope this helps someone else who has just started using patches and has had same problems as me xx