Keeping the above studies in mind, the investigators built this study using the protocols devised by Borazan H, in which they evaluated the efficacy of magnesium lozenges on POST. There are currently no known studies that look at the efficacy of zinc in the prevention of POST. The investigators will use custom compounded lozenges from a local pharmacy with 40 mg of elemental zinc (equivalent to 174 mg of zinc sulfate) per lozenge, which is the tolerable upper intake level for zinc in adults as defined by the US department of Food and Nutrition Board.