I am new to mms and was going very slowly--I was only using 1 drop in am and pm and 3-4 drops unactivated in 2-3 liters of green drink a day. I work with children, so I am constantly exposed to germs--I usually get 2-3 colds a year, but not so bad I can't work. Until this past week! My head was pounding, runny nose, sneezing, and a cough that would not quit. I refused to go to the dr because I did not want Antibiotics . (This frustrated my dh beyond belief!) I'm finally feeling better (day 5) and hope to return to work tomorrow. Don't know if this was a die off reaction or just a bad cold... I really need to take something to drain my sinuses if I'm going to function tomorrow. I don't feel dizzy, but sort of lightheaded if that makes sense. I'm still taking the mms (up to 3 drops am and pm) and was wondering if I could take an otc decongestant. I'm still coughing up mucous, but only periodically. What do you guys think? Sorry for the graphic description!