★★★★★
Preventative measures by gargling anti bacterial whether it be mouthwash, peroxide, vinegar, or salt water seem to be an important step, but once youre in the middle of the gritty cold then its really buggin and I would not suggest too frequent ingestion of vinegar or other acids as they can, in fact, have negative affects on the body and internal organs if overused.
ACV works a miracle on my skin problems but when it comes to beating a cold in the middle of its worst, it just didn't do it for me. A friend suggested to me as I was coughing, to drink hot water. Not hot tea, not hot chocolate, not hot anything else, just plain hot water.
Sip hot water throughout the day all day long, from morning to night, no sugars or dry/solid foods, the cold will clear in a very short amount of time.