Some background. Younger son tried Dexcom seven 7+ in 2009. After about a month he developed an allergy like looked like a chemical burn. I posted back then pictures and things we tried to solve it. Could not figure it out and moved him back to Abbott Navigator until it left the US. Love/Hate relationship with that thing. After that we moved him to Minimed Sof sensor and the Guardian. He had no allergy problems with that CGM. Then moved him to ENlite with the 730g. We had tried Tough pad years ago. We may have tried Flonase once? Not at the same time with Tough pad. Friend of mine suggested trying the two things together. That worked perfect. So I had bought the G4 system again this year trying things. We first apply flonase and let it dry. Then apply Johnson and Johnson Tough pad after warming it in my hand. I then apply Dexcom. We shoot straight through, no hole punched out. I actually think he skin looks better after wearing the tough pad. Older son Has been wearing Dexcom since 2009 , no allergy for him. So Enlite goes on the shelf for now. Maybe indefinitely . Oh, we apply strips of Opsite on the edges of Tough pad to make sure it does not lift up. There was someone else back then on here that could not find a fix. It was a dad, not sure his name or if he is still on here. If you are , give this a try.