I wish I could help you. I googled it, too, and like you I found it confusing. Maybe if you called the doctor and asked for a return call either the doctor or the nurse will return your call and give you an answer. I would not want to wait several weeks for an answer to my 5 year old's medical situation. Try giving them a call and expressing your concern. See if the doctor or nurse will return your call if you request that. Good luck. I hope your sweet daughter gets to feeling better very soon.