If it’s still sore a few hours after you applied it, take it off and start again, it probably didn’t go in quite right. Message the Nico team through the app and we’ll help with a replacement.
When you apply the next one:
Use the soft part at the back of your upper arm, between your tricep and shoulder.
Avoid muscle or bony areas.
Clean the skin well and let it dry before you stick it on.
A tiny spot of blood is fine if it’s not painful, it should stop in a couple of minutes.
If your skin feels irritated:
Remove the sensor and let the area rest. When you try again, move to a slightly different spot. If your skin is sensitive, apply a bit of baby oil for a few minutes before peeling off the old one, it’ll help loosen the adhesive.
The sensor is waterproof, so you can go without the patch if you prefer, but be careful not to knock it.
If you’re unsure or have ongoing irritation, talk to your doctor. They’ll have seen plenty of CGM reactions before.