The patch

Rash!!! Please help ! Ive been on the patch for 2 months now & the first month went perfectly fine. However the 3rd week of my second month, on sunday(the days after my patch change day) i went into a pool and it became unsticky on the sides but it wasnt that bad so i left it there. By wednesday it began to itch real bad and when i checked it felt red and irritated and was super itchy so that day i changed into a new one. It left behind a scar and i thought maybe it was the pool water or something. But when i took off my patch on saturday for my patch free week, i got another rash !! So now i have 2 rashes where i applied the patch at. Could it be an allergic reaction ? Should i go see a doctor? Please help !