I hesitate to give this advice, because of the reception I received the last time I gave advice like this, but I have been trained in herbal medicine, and have 14 years of experience. If it were me in your condition, I would take 1200mgs of Garlic and 800to1000mgs of Echinachea every 3 hours for at least 2 days, maybe 3. Then I would cut it back to every 4 to 6 hours for at least a week. I would also drink lots and lots of water. Now according to some Doctors, if you have allergies or Asthma you could have an allergic reaction to it. I personally have never seen this happen to myself who has both, or anyone I have given it to or has taken it. My mother had COPD, and took it many times without a problem. And her Doctor ( who is a little more progressive than some) agreed with her taking it. My mother in law, who has damaged and very sensitive lungs just staved off Pnuemonia with it. It's your call. It sounds like you have a bad case of flu, possibly pnuemonia, and not a cold. Echinacea tackles virus's very well, as well as bacteria without compromising your immune system like antibiotics do. And antibiotics dont do a thing for virus's. Any way that is what every one I know, as well as myself would do in your shoes. I certainly hope whatever you do, you feel better soon.