Hi. I'm Dr. Lee and will do my best to help.
Did your vet actually detect a fever on LeXXXXX XXXXX? If so, what was the exact temperature?
Why was he at the vet originally?
Thanks for the info.
Over 103 is not that bad a fever. Normal temperature for a cat is up to around 102.5, and sometimes 103.0. Aspirin etc are not recommended for cats to reduce fever. As a matter of fact, medications are not usually used to decrease fever. If needed, alcohol is used to put on the paw pads to reduce fever. As well as using fans. I would not suggest to use anything for the fever. Giving human medications can potentially lead to toxicity and make the situation worse. It is best to let the antibiotic injection take effect and then reassess. It usually will take a couple days for you to see any improvements.
Please let me know if you have any questions or concerns. Thanks.