"I went on birth control due to irregular heavy bleeding and excruciating cramps.  I have no prior allergies, not even poison ivy.
The good:  My cramps are now minimal if they happen at all.  The heavy bleeding is no longer an issue and my periods are regular.  I have no issues with the patch falling off.  I shower daily as well as exercise and this seems to have no effect on the adhesion.
The bad:  After 12 hours of wear or less, the patch becomes very itchy.  I try to resist the urge to scratch, but it gets to the point where it feels like my skin is on fire.
The ugly:  The patch leaves a red rash where it was applied to the skin.  Sometimes it will create a weeping wound with blisters.
Go with something else!"