Home Remedy for flu, hacking cough, tight congestion. 1/4 tsp. Cayenne, 1/2 tsp Ginger powder, 1 tablespoon Apple Cider Vinegar, 2 Tablespoon Water, 1 Tablespoon Honey. Dissolve cayenne and ginger in apple cider vinegar and water. Add honey and shake well. Take 1 Tsp as needed for cough. Works like a charm!