I was given a methylprednisolone pack of 21 pills to be taken in 6 days, for a head congestion and cold. I think I may also have a sinus infection, because I have yellow and sometimes green gunk coming up, I am concerned that it will make my infection worse if I don't get on a antibiotic please help, I took 6 pills this morning all at once and I don't feel any better, Should I continue to take the rest of the 5 day pack. my son is getting married and I am in desperate need of help on whether or not to take the remaining pack since is a Sunday and no one is open tomorrow to talk to . thank you, Debi