So kind of you to try and help this little one. However, I don't think that it is good to give cats any type of aspirin. Hopefully, someone can confirm or deny that for me, but I don't think it is good for them and I don't want to see this little guy have any more complications. Sounds like a visit to a vet is in order to get some meds. Please keep us posted, sure hope he is doing better real soon.