The antibiotics should help Frost feel better quickly. Mac got terribly ill several years ago and would not eat or drink. After about 3 days I took him to my vet who had no idea what was the matter with him. I went to vet after vet and all they could do was hydrate him and scratch their heads. A specialist told me his liver was enlarged but that was very likely the result of 5 days of not eating. They wanted several thousand dollars to do an exploratory surgery. I did not have that amount of money, so instinct kicked in and I asked for some antibiotics and fluids. 1 day later Mac started eating and the next day he was drinking up a storm. I found out later after some blood work came back, that he had a blood infection probably as a reaction to a flea med I gave him. Antiobiotics worked wonders for Mac and I hope they do the same for dear Frost!