I have two piercings, both ear lobes at 6. I went from 10 to 6 on my left in a day and pierced my right, streached to 10 then to 6 in 2 days. After that I left my plastic streaching earrings in with o-rings for a few weeks and they did not like to heal, so I got some metal plugs and pinchers with o-rings and I had the same problem. So a few weeks after I finally got some metal hoops and didn't have any more problems. It didn't occur to me that it was the o-rings irritating the hell out of my lobes until a few weeks ago when I went to put in my flesh tunnels again(I love flesh tunnels) and I used the o-rings. Immediatly within 5 minutes, my lobe was red, itchy and the piercing was oozing. So I got those silicone flesh tunnels from ebay and everything healed up right away. I love these tunnels and would recommend them to everyone. What this comes down to is, does anyone else have problems with the rubber in the o-rings? Are there other o-rings I can use that aren't rubber? Oh and I had a rubber band on my wrist for 2 hours 1.5 months ago and I still have the rash, so I'm sure I'm allergic to rubber/latex.