Fill in an MRHA form for equipment problems. Just put it into the search engine it will come up. I and many others have done this. Abbot have since rung me to take a detailed history. Which is movement in the right direction. As I’ve said before many people are affected by this. For the last 4 sensors I have sprayed 4 layers of Cavilon on pre attaching, and have had good results so far. Still get the red mark but no itching. I then tend to cover with lint and Opsite to ensure it doesn’t fall off. Plus it is there for all my swim sessions. Join the Dexcom and Libre rash Facebook site. It is an eye opener. The desperate steps people are taking to keep using this product.