Veterinary questions? Ask a Vet for Answers ASAP
Hello Lenise. You are going to need to give the vet who prescribed the antibiotics a call. Some antibiotics are injected. Some are given by mouth. It isn't necessarily safe to change how they are given. Th vet should have shown you how to begin with.
For respiratory infection, the antibiotics are usually injected, but never into the neck. A leg is the most common site, but there is another one on the lower body that is used sometimes. This is something where it really is important to have the vet show you what to do.