I'm so happy to say that his temp is 100.7 rectally, but it's also 94 degrees outside with high humidity! That's SO much better than before! His cough is gone, the vet said just a few traces of crackles left in his right lung - left is now clear!!! He seems brighter, has a springier step, and is back to nickering for his mash etc! I cut back the lasix to 1/3 of what he was getting due to the high heat index and the potential for dehydration.
He's getting Excede (extended release naxcel) and he seems to be responding to it nicely! I'm so grateful and relieved!