This has been a bad season for illness. I'm pregnant and I was sick for 3 1/2 weeks and my son for 2. The symptoms kept changing which is frustrating (ears, fever, cough, sore throat, etc.)
Try seeking out a "classical homeopath". The first visit is expensive and not covered by insurance, but I have had great success. I was inspired to educate myself since my positive experience and I now feel confident doing first aid type treatments on my family homeopathically. We never go to the doctor (in fact, I put off finding a pediatrician for over 2 years because I don't vaccinate and I never had any other reason to go). For sudden fever, try Belladonna in a 30C potency found at health food stores (a homeopathic remedy).
The other thing would be to try and boost the immune system. Probiotics for children can be found in powder form and mixed with whatever. If taking antibiotics, take the probiotics two hours after the antibiotics. If taken together, the antibiotics "kill" the probiotics and you don't get the benefit. Herbs for Kids makes Echanacea/Eyebright drops. Extra Vit. C, etc. Hang in there. I've been there and it's no fun and sometimes scarey.
Email me if you want more info on homeopathics. I'm no expert, but I read up on it and do it a lot.
B.