# Allergic reaction to new sensor tape **URL:** \ **Category:** Type 1 & LADA\ **Created:** [January 3, 2021, 5:44pm UTC](https://forum.fudiabetes.org/t/allergic-reaction-to-new-sensor-tape/10723 "2021-01-03T17:44:20Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![Randy](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/randy/32/5435_2.png) [@Randy](https://forum.fudiabetes.org/u/Randy)\ **Post date:** [January 3, 2021, 9:54pm UTC](https://forum.fudiabetes.org/t/allergic-reaction-to-new-sensor-tape/10723/3 "2021-01-03T21:54:45Z")
@mawmawned, it is apparent that we are not alone, and we already have a thread on this one: > [@Rash under Dexcom G6 sensor](https://forum.fudiabetes.org/t/rash-under-dexcom-g6-sensor/10267): > > After 12 continuous years of using Dexcom sensors, my last two have caused a rash underneath. It is persisting more than ten days after taking off the first one. Never had that problem before with Dexcom. Anybody else experiencing this? I put down a layer of Tegaderm before inserting the third one in the batch. Since Medicare is only allowing me three sensors at a time, I didn’t want to take the second one off even though it was itching and I knew would cause a rash. I tried calling Dexcom fo… I am using 3m’s hydrocolloidal bandage with a hole punched through the center. That works for me, although one one of them I still got a rash the shape of the Dexcom sensor base. There is a YouTube video referenced in the thread that shows how to do it. And specifics on how big a hole to make in the hydrocolloidal bandage. --- _[View the full topic](https://forum.fudiabetes.org/t/allergic-reaction-to-new-sensor-tape/10723)._