Try less cayenne to begin with. Work up to 1/2 teaspoon
which is a lot for say a 10 ounce glass. Also, using
a straw helps. We use a lemonade with cayenne for the
MC but I like to make up glasses just specifically
to dose with cayenne. Otherwise, 4-5 drops of cayenne
tincture in some water, a brisk stir and down the hatch~!