Blister

I have been using the old Static Stretcher vacuum stretcher and also have the Phallosan Forte.

While using the rubber penis head cap, I developed a blister on my penis head after stretching in the static stretcher. I use the SS and then the Forte at a lower weight. It’s a nasty one and it’s going to take at least two weeks to heal. I know that I am to completely stop using a vacuum bell until it’s fully healed and then some. I thought that with using the rubber cap (Phallosan) that that was enough to prevent them. I’m only at 6LBS max. I’ve been using static vacuum stretchers for a long time.

Does anyone have a foolproof system to use to make sure this doesn’t happen again? PLEASE HELP!