Aftercare of a tear

I’ve been using the bottle they give us after birth and wiping here and there, but I’ve been noticing that I have pain when I sit down it hurts/feels like they I’m dry down there. I’m just wondering if I should be concerned. And I still have some Butt/back pain I’m five days post birth. My blood is still red and I’ve had some yellowish discharge (not every time) but when I was in the hospital they said it was okay. I’m just a little worried.