pussy eye discharge

I was wondering if anyone could tell me why my cat's eye has been having a pussy discharge and what I can do to clean and treat it?

Thanks for your help!

Is this a new cat, or one you've had for a while.  How old is he?  And does he go outside?

The odds are good that he either has an Upper Respiratory Infection (URI), which is the cat equivalent of a cold, or Feline Herpes, which is very common (nearly ubiquitous) among cats.  Check some of the threads on here about using L-Lysine to supplement his foods, which fights those viruses.  It's an inexpensive treatment that most cats tolerate very well.  No nasty taste.

However, if this has been ongoing, a vet visit is certainly called for.  You want to rule out some of the nastier possibilities, including eye injuries.

Thanks for the advice.My cat (Wednesday) is almost 7 years old and I've had her since she was a kitten. No this is not common for her, this may be the third time I've ever seen it in her life. I do have another cat whose eyes water all the time but they never get pussy. Wednesday is showing no other signs of being sick just squinting her left eye and having pus run from the corner by her nose.

It is possible that since your other cat has constantly watery eyes (Herpes Virus) then she is constantly shedding the virus and Wednesday picks it up from time to time. Herpes never goes away - once infected the cat sheds and carries the virus for life. It is not life threatening in the least - but just causes these eye flare-ups. L-Lysine would be the best thing for you to start using. It comes in powder form and has no bitter taste. Use it twice daily mixed in wet food. There are a couple of thread going on right now, as MrBlanche mentioned about Lysine. BUT first - I would take you cat to the vet to have the eye looked at to make sure it is not scratched.

Thanks! I'll check into this  L-Lysine. Her eye is doing better now now more pus. I forgot to mention in my last post that all my cats are indoor only but Wednesday was a stray when I found her.