Yesterday, while preparing dinner, I slipped with a knife and chopped off a chunk from the end of my finger. The cut goes digonally across the end of my pointing finger and has taken off about a third of my fingernail the surrounding skin and some of the pad of the finger 
When I did it, I knew it was bad but not A&E-worthy and was lucky to get a cancellation at my doctors where the practice nurse washed and dressed it for me. As I'd chopped off mostly nail, there was nothing to stictch or glue so she covered the wound with steri strips and covered the whole thing in a dressing and a stretchy finger bandage. She told me to make an appointment for next Monday to have it redressed.
But the bandage she put on covered my whole finger all the way to the knuckles of my hand and was really uncomfortable - I was also concerned that leaving a blood soaked bandage on for 6 days was perhaps not the most hygenic thing ever - so today, I removed it and re-dressed the finger with a shorter sterile pad so that I could bend my finger again to stop my tendons aching from being held straight all the time.
During today, the wound has obviously been bleeding a lot again as the new pad is soaked through, I can see a huge red patch even through the tape! - so my question is, do I redress it in a clean pad again or is messing with it likely to make it worse and should I just leave it?
Any advice would be appreciated.