Get real. This cat is in a crisis situation and was medicated without
any medical expertise involved. This could be the cats problem right
there.

Other than take the cat to a vet what safe advice is she going to get
here? More suggestions to try a different drug?

Where is your helpful advice the way?

-mhd

Thank you Mary,
People like that should stay off the newsgroup. Two psychos in a row
answering someone who is distressed is two too many.
Treating wild cats in isolated areas is not easy.
The reason I posted was that the vet did not know, or does not think there
is, a way of unblocking nasal congestion in cats. Vets in the Agricultural
countryside often know little about small animals as they spend their lives
working with farm animals so I am looking for a second opinion.
If I cant find a way to unblock this animals nose immeadiatly it will die
because it cannot take its antibiotics, eat ot drink. It would die in the
local surgery as it is small, has loads of noisy dogs barking etc, and being
wild she would be terrified.
I tried Vicks Sinex but no good.
Sara.

I had to nurse a congested feral through to wellness after her spay. Like
you, it was practically impossible to get her back to a vet in her wild
state. I did, however, have the resources to get some antibiotics from
the local clinic without taking her in. But getting the pills in to her
is another story. I was told it was most likely viral, so ABs wouldn't
help unless she developed a secondary infection. Most likely it was
feline herpes virus which can be made better by giving 250MG of L-Lysine
(purchased in a grocery store, or health food store) 2x per day for a
week or two. Again, how to get it in her? Since I couldn't get close
enough to force feed her, I heated up some canned kitten food in the
microwave (makes it smell stronger), broke open a 500 MG capsule of L-
lysine and mixed 1/2 in.  She wouldn't eat on her own (hissed and swatted
at me, wanted me dead), so I taped a spoon to a long wooden spoon to give
distance between us and I would put small spoonfuls under her nose, a
little *on* her nose (the top, not near the nostrils) and she ended up
first licking it off her nose. The first couple of times this didn't go
as expected but you have to keep up with it until they eat something.  
When she tasted it, she realized she was hungry so ate the food from the
spoon. I mixed the ABs in to the food, also. I was able to get 1/2 can of
food into her per day the first few days (many many feeding times, it was
liking having a newborn), gradually she ate more and more and then felt
better. Still didn't trust me, but that also grew with time. As a bonus,
they will start to connect you with feeding the food and it helps with
bonding.  Good luck.