Those darn URI's seem to last forever.
Hang in there and give it a little more time. You are doing all the right things for your baby. Such a good meowmie.
Since Kirin is still acting fine, playing and eating well, I wouldn't worry too much about it. Obviously like any good meowmie, it bothers us more than it does them.
No one likes to see their precious little one sick.

(((((HUGS))))) to you.