What do to about red eye (contact lenses)?

I have worn contacts for about 3 years with no problems. I recently ran out of them and wore my gles for around 4 months until I could get an eye appointment. When I got my new pair of contacts, I had trouble getting them out, and think I might have scratched my eye. It does not hurt, and I have no alteration of vision, but my eye has been red/bloodshot for the past few days. I haven't put my contacts back in since then and have been wearing gles. Any ideas what I can do to get rid of the redness/bloodshot?