I think it's CARBON DIOXIDE
I am not sure.
Herpes labialis is what you are looking for
They might not no how to use the equipment
Withdrawal!
hope this helps!
If you use it perfectly, the patch is 99% effective. But people aren't perfect, and it can be easy to make a mistake. so in reality, the patch is about 91% effective. That means about 9 out of 100 patch users get pregnant each year.