My rat started with some respiratory problems a few weeks ago. I went to a vet and started treating him with anti-biotics and antiinflammatories. It all went well and he got better. But a few days ago he started becoming worst. Much like the first time. I sent a message to the vet and he told me to do the same treatment. But this time the rat won't get better (he isn't getting worst at least). And he is not eating. He is walking around and drinking water(the first time he just went to a corner and almost wasn't moving) but now he just won't eat. I talked to the vet but he doesn't know what to do because he is no specialist and I don't have one in my area. If anyone know what to do, please help.