I am sorry he is so sick. I have a kitten here that we rescued at the age of 4 1/2 wks. She had a very bad URI that she is still recovering from. The vet prescribed Clavamox and said to give her 0.1cc (or ml) every 12 hours. It is a small amount, but it is doing a great job. My vet said it is 0.1cc per pound. So if he is 2 pounds, give him 0.2cc. Make sure he eats high protien kittne food mixed with kitten formula to gain weight. The formula will give him extra calories, if you think he is about 7 wks (he looks about 4 or 5 though), you can give him stage 2 kitten formula. They also sell at the vet something called Nutri-Cal, it is a high calorie dietary supplement and is doing wonders on this girl as well as other cats and pups I have used it on before. Somebody mentioned a warm wash cloth with saline for his eyes, that should work great for the kit. I also use a heating pad for the kit at night, just on low to keep her body warm. She was very skinny though, emaciated actually. But it may help your little guy. Never know. I pray he gets better soon. I hope this helps a bit for you. Good luck and please keep us posted.