Bringing in the comments on a random thread from five years ago. Thanks for sharing, person nobody knows. We don't know what the hell you are talking about.
No issue with knees? Good luck. Both of my knees are done. The left one got so swollen that i couldn't bend my leg. The black and grey on my right healed better, but it still hurt a lot.
Knee and elbow ditches? Piece of piss.
It'll be fine. I had an infected tattoo once, and it was nothing to do with the artist. After antibiotics, I got it touched up a few months later, and it is fine.
Going this week to get my knee touched up, some small tattoos to fill in my legs, and some stars and dots. I haven't been to see my friend/tattoo artist Josh in over a year, so I'm looking forward to it!