pretty new to this site but have followed ideas with some sucess , i have a ten and half year old DS who has herpes virus in one eye, we had blood tests etc done to confirm, anyway he is a big cat, very long and 81/2kg so getting the right amount of lysine was hard, but even on high dose didnt help completely, i did alot of research and found a vet recommending for both dogs and cats colloidal silver and im having amazing success at last.... i bath sammies eyes three times a day with a solution of bicarb soda with warm water and twice a day put two drops of colloidal silver in his eye, hes a good cat so its not a real problem like i know some people will find....i have used colloidal silver on my own skin for various reasons, but due to dealing with eye problems have been very cautious as we know eyes are very sensitive. i can only say its the only thing i have been doing for the last 5 days and the eye is 99% better. ..its not something i would have tried if i had not read it on a vets site on the internet...i hope this may help someone else who is struggling like i was with this problem, best wishes to you all , i know how everyone would be like me and hate seeing their pets with problems