Our cat, which is 12 years old, has been ill for around 2 months now. However, we don't know what the real disease or problem actually is.
The problem during these 2 months is that our cat lost a lot of weight, is not drinking and eating like he was used to, and that he produces way too much slime in his nose and throat. The mucus is literally hanging on his chin. Therefore he is coughing and sneezing a lot.
The steps that we have taken so far are:
It all started when we started to see some signs of a common cold. So we started visiting a veterinarian.
In the first place, the veterinarian was thinking of a strep throat, just like we did. He gave the cat some antibiotics, which didn't resolve the problems. After that he got other antibiotics. They seemed to work, but after all they did not either.
We decided to visit another veterinarian. He was thinking about some bacteria or some kind of fungus inside his nose. Another antibiotics was used, but that didn't work as well.
Since the whole problem is inside his nose and mouth, we started to check his teeth and mouth. Since the veterinarian was thinking of a gum disease, the two side teeth of the cat were removed.
After the removal of the teeth, our cat got prednisone, which is now one week ago. However the problems persists.
The last known antibiotics are spiramycin and metronidazole
Note that during this time, our cat stopped eating and drinking like he was used to. The only way to feed him, is to use liquid food. Think of meat products and a lot of recovery food cans.
We can also notice that our cat is not drinking water enough. He used to not drink a lot of water, however, now we need to force him to drink using a syringe.
After reading all this, you might say we should stop the cat from suffering. However, the cat is still showing all of his original signs like cleaning himself and responding to people.
So, to wrap it all up, the veterinarians do not have a real answer to the problem. So, are there any veterinarian around here, or people with a similar problem which can help finding the cause of this problem?