its itchy in my🐱

ok so basically for the past two weeks ive been wearing liners everyday, but then just this week i felt irritated down there and i kept itching, it started to bleed and it hurts so much. i have no idea whats happening but i think it might be the material of the liners since its also the same thing with pads, maybe its an allergic reaction. i have no idea but if you do please tell me, thank you very much!