Seeing your thread after-the-fact - glad to know he's alright! One thing you might consider getting to put in your medicine cabinet is suppositories to help bring fever down. My son woke up throwing up one morning, and it got so bad that he laid down in front of the toilet. The ped's office had said to have him sip on an ounce of water or ginger ale every 15 minutes, but he'd keep throwing it up.
The ped told me that his fever was contributing to his vomiting, so if we could get his fever down, it might stop the vomiting. So she had me get the fever suppositories and I went by her instructions over the phone. I explained everything to my son, and he was compliant (mostly because he felt awful). It did bring the fever down some, but not enough and eventually I did have to take him to the ER. He had an IV bag, they ruled out meningitis, and the next day he went home feeling a ton better.
I just wanted to tell you that story so that you would know about the suppositories. When a child keeps throwing up, giving them oral Tylenol won't work, so the suppositories will help. Even though I did have to take him to the hospital, he didn't have any damage because at least I was able to keep the temperature from going higher by using them.
Dawn