Allergic to pads?

Hey, ladies! So I have been noticing that near the end of my period I start getting a rash/redness and just kinda painful from my pads. Is it possible to be allergic?! I have tried changing them OFTEN to see if that makes a difference and it doesn’t. I rarely wear tampons because they are uncomfortable for me. Are there any pads out there you recommend? The problem is I don’t know WHAT I would be allergic to. I used to use always brand. I still do at night but do the seventh generation brand during the day