Good luck with your kitty, Lana. I went through this with my Cornish Rex, Buddy, who sadly died a few weeks ago. We did the steriod shots, the rounds of antibiotics and the chlorpheniramine. He'd sneeze a lot and the mucous seemed dark (and splashed the walls, the windows and sometimes me) and sometimes his eyes would be weepy with a brownish red tint which made me think of blood. There was a spell where he'd have asthma attacks. The steriod shot would help a bit, but it can weaken the immune system and after one he got really sick and had to take another round of antibiotics. I know the vets say allergy, but I keep wondering if this has all been caused by a virus and that's why they feel okay for awhile and then it comes back. Keep close watch to make sure he's eating okay and getting enough water. Pinch his skin and if it stays "pinched up" he's dehydrated.