How many times can you go to or call the dr. in one week?

Hannah woke up Monday with a low grade fever. Tuesday she did not have a fever but was fussy and pulling at her ear. I called the doctor and we went that afternoon. The doctor said she looked fine. I told her I just wanted to check since tomorrow was a holiday. Wednesday she woke up with a little higher fever and was a little fussy. She also broke out in hives. Thrusday no fever but still some hives off and on. Friday she woke up and kept a fever of 101 all day. She also still had hives off and on. I called the doctor and she wanted to see her. She could not find anything wrong with her but said if she still have fever (100.5 or higer) in the morning she wanted to check her urine. She said if she had a kidney or bladder infection that she would probably be throwing up. Saturday she only had a fever of 99, but I called and the doctor said just to watch her. Well, about 4 pm after her nap she would not eat or drink and was very fussy. I was holding her and she threw up everywhere. I cleaned her while dad cleaned the floor. Then she just wanted to lay down. I called the doctor again. She said to let her sleep about an hour then get her up. She woke up on her own and seemed okay for about 5 minutes, then threw up again. I called the doctor again and she said to take her to the emergency room. On the way out the down she thre up a little more. We made it to the hospital with no throw up. When we got in she strated acting like she was going to throw up again. They gave me a little dish for her to throw up in, what were they thinking. She missed the dish and got me. She had a fever again when they checked her temp. They gave her some pedialtye to drink. She would not drink for us at home, but guzzled it down for them and then turned into a wild child. They had also given her some tylneol. When they gave it to her I noticed it was way more than we give her at home. The said it was better that I gave her less then more, but told me the correct amount to give her. The ER doctor said they needed to cath her. She was not happy about that, but they said she did good. She had a little place of hives while we were at the hospital. I was glad to show a doctor. No doctor was worried about the hives. After waiting about thirty minutes the doctor came in to tell us that her urine was fine. She diagnosed her with a virus. She said it should pass in a few more days, but if it didn't to call the doctor back.