After cancelling more orders of Freestyle Libre sensors, I had just one left from the last order I received a few months ago.
As I mentioned in my last post about the Libre, I made an appointment with my doctor to see if he had anything else to suggest I try. He said we had gone through most of the topical steroids (and that Clobetasol was one of the more powerful ones, so if that didn't work, there wasn't really much else). I told him about talking to my diabetes team (and that they contacted the Freestyle Libre rep); my doctor agreed that Benadryl wasn't the answer.
As a last ditch effort, and since I had the one remaining sensor, my doctor gave me a prescription for a tacrolimus ointment. Tacrolimus ointments are used to treat eczema. On Saturday, I put some of the ointment on my arm, figuring I would put it on 10 minutes before putting the sensor on. I marked my arm with a sharpie to make sure I knew where the ointment was. After ten minutes I alcohol swabbed a patch in the middle, and got ready to put the sensor in as my cleaned skin dried.
This was around when things started to go wrong. I somehow missed the alcohol-swabbed patch of skin, putting the new sensor kind of through the remaining patch of ointment. Here's a picture to show you what happened:
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| You can see that the majority of the tacrolimus ointment is above where the sensor was placed. |
Yeah, not ideal. I think what happened was that I mistook one of the many moles I have on my arm as one of the sharpie marks. So yeah, not exactly ideal placement.
So that night while attempting to sleep, I'm not entirely sure what happened, but I woke up with a sharp pain where the sensor was. Then during Sunday afternoon, the sensor just failed. I pulled it off and it was covered in blood (which is not at all normal for these sensors).
The sensor itself was also horribly bent. So whatever happened during the night must have pulled it out of my skin or something.
This sensor was in my arm for less than 24 hours. And once again you could see the tell-tale ring of where my skin was reacting:
What I find interesting about this one is that the ring is there even in the spot where there definitely was some ointment protecting my skin (in the picture we're talking the part closest to the viewer, on the left). So I can pretty confidently say the tacrolimus ointment wouldn't have helped even if this sensor had lasted.
In a way I'm kind of glad this sensor failed when it did. My arm continues to be itchy, and was kind of leaking arm goo in a few places (although that might be thanks to scratching it too). Had the sensor lasted any longer than it did, my arm would have once again been a mess under it. So at least this way, the sensor is off and my arms can now fully heal because I won't be shoving more Libre Sensors on them anymore.