Yes
The swollen leg and a rash maybe a sign of cellulitis. Gram staining should be done and antibiotics will be given.
No, you are just adding to your problem.
If the base of the tail is swollen, it may be infected by a bite of another animal. The swelling will need to be drained by your veterinarian, and it may require antibiotics.
The best way to treat a swollen and infected hand due to IV use is to go to the doctor and let the doctor give you antibiotics.
Antibiotics. Take her to a vet.
It depends on what is causing the swelling. This is why you need a doctor to diagnose the problem. Antibiotics may not be the appropriate treatment. They are only good for certain types of infections.
First, you have an allergy and probably an infection. You can take allergy medicine and you can put something like iodine on it. You are trying to clean out the infection. Then if it does not start going down you can get antibiotics. Depending on what you mean by very swollen, you can skip the allergy medicine and iodine step and go for the antibiotics.
Well if the mare is pregnant it means she is getting very close to foaling, especially if they are dripping milk/colostrum. If however the mare is swollen without being pregnant it can mean she has an infection and might need a course of antibiotics to clear it up and make her more comfortable.
Colds and infections such as tonsillitis are the most common reasons why someone may get swollen lymph nodes on the neck. This condition needs to be checked by a physician before antibiotics are prescribed.
My hamster does to and have nothing to do it's eyes are red and swollen
Most of the time it will get better on its own. If it becomes infected you will need to take it to the vet for a cleaning and antibiotics.
I just came from the vet scheduled because of my dogs swollen lymph nodes. The vet believes it to be either an infection or lymphoma (cancer). Make an appointment with your vet. They will most likely prescribe antibotics to eliminate any infections. If after antibiotics if the lymph nodes are still swollen they will perform a biopsy. Best wishes.