I get strep throat like 3x a year (shoulda had those tonsils out when I was 12...) The trick is to take ALL of the antibotics, even after you get to feeling better. Eat some yogurt after the antibotics run out to replenish the good acidophilous (sp?) bacteria in your system. You'll get to feeling better in a day or two, but take it easy until you finish the medicine.
Get better soon!
Ryan