To help him eat, warm his food up. This will enhance the aroma and entice him to eat. I use a water bath, but you can use the microwave for about 3-5 seconds or so. Also, if he's congested, you can get your bathroom nice and steamy, bring him into the bathroom, and sit with him until the steam dissipates. Or, you can run a warm mist vaporizer 24/7 near where he's sleeping. You can also use Little Noses saline drops in his nostril to help with congestion.
As for the Lysine, you can use the pills from the health food store or from the supplements section of the grocery store or pharmacy. Get the 500mg variety and give him 1/2 pill twice daily. You can crush the pills between two spoons and mix into wet food. If you're really desperate for Lysine, you can get Enisyl gel paste from the vet. My kitty used to love that stuff and licked it off my finger. If you use the powder, 1/4 teaspoon equals 500 mg.
As for the Lysine, you can use the pills from the health food store or from the supplements section of the grocery store or pharmacy. Get the 500mg variety and give him 1/2 pill twice daily. You can crush the pills between two spoons and mix into wet food. If you're really desperate for Lysine, you can get Enisyl gel paste from the vet. My kitty used to love that stuff and licked it off my finger. If you use the powder, 1/4 teaspoon equals 500 mg.