I used an old infusion set box only because the cardstock-like nature of the box provides durability to the template. The first thing you will do is trim off the top of the box.
Lay an old sensor on top of the paper and cut it to make more of a square shape.
Fold the old adhesive under the plastic. Only the gray transmitter cannot be covered using the DexCom system.
Trace the shape of the plastic onto the paper.
Cut the plastic shape out of the template.
Lay the roll of Flexifix over the template.
Cut the Flexifix to the desired size.
Lay the Flexifix under the template and trace the hole of the template onto the Flexifix.
Cut out the center of the Flexifix.
The paper backing of the Flexifix splits down the middle. Peel off one side of the backing and lay it on the skin over the newly applied DexCom sensor adhesive.
Peel off the other side of the backing and press is firmly against the skin.
Peel off the top layer covering over the Flexifix adhesive from the center.
The covering is complete. Enjoy the extended sensor life!
When I use this method, the sensor dies long before the adhesive does. As I mentioned before, my skin is very sensitive. I dont use IV Prep or other similar products because they give me hives. I have not had any reaction to FlexiFix at this point, and I have been using it for several months.
The only problem Ive had is the interesting tan lines it is starting to create as the weather is getting warmer!