Sorry for the long post, it's been a long process, my pig Wayne has been sick with a Uri since the end of December. Thankfully the whole time he has been eating, drinking and pooping normally! I brought him to an emergency vet back in December and they prescribed him Trimethoprim (a sticky pink liquid) and a follow up with my regular vetafter 10 days. He seemed better after a few days but was still wheezing and sneezing occasionally. At the follow up my regular vet prescribed him baytril for 7 to 10 days and if he seemed better a couple of days after that he could be reintroduced to his cage mate Garth. He did great on the baytril and only breathed heavily occasionally while sleeping at night. After a few days of being off baytril i noticed him wheezing and sneezing again so I started him on baytril and went for 10 days keeping him with Garth because they seemed very stressed being apart. That ended this past Wednesday and he seemed great but two days later I noticed Wayne sneezing a lot and so I tried vetRX to help his respiratory system and scheduled a vet appointment for today. This whole time Garth has shown no symptoms and I check his breathing often. My vet prescribed him 3 weeks of baytril incase we weren't going long enough to kick it and told me to get a humidifier and use sodium chloride with it. We started thinking that Wayne is allergic to something but I don't know what it could be. Does it sound like he has a stubborn uri or allergies? I've had them for a year and he had a uri in the summer but that went away with one round of baytril. I was supposed to end his baytril on February 25th but since he is still breathing loudly and sneezing occasionally I've decided to give it a few more days. He does have some mose crusties but nothing on his paws, everything besides his breathing seems fine but I'm worried to stop the baytril and have him get worse. Could it not be a uri and be allergies or something else? I'm wondering what he could possibly be allergic to, I use guinea dad fleece liners in one midewest cage washed in free and clear detergent and csrefresh litter in the other, I use Timothy hay and I do have cats. Has anyone had a Guinea pig with allergies and if so how can you tell what causes them? I'm at a loss and I just want him to get better I worry about him all day. Thank you in advance!