After Bite After Bite stops the itching & swelling from insect bites & stings. As After Bite stops itching & scratching it helps prevent impetigo, a dangerous & contagious condition that occurs when children continually scratch bites which can then become swollen & infected. It comes in a pen-like vial that is both convenient to carry & easy to use. Simply rub the pen-like applicator on the affected skin & relax as the itching & swelling disappear. Ingredients The active ingredient is ammonia (3.5% w/v). The other ingredients are mink oil, alcohol ethoxylate, dimeticone & purified water Directions Apply to skin only. Shake well before use. Rub the applicator directly onto the bite or sting. Repeat if itching does not go away. It is better to use After Bite as soon as possible after you are bitten or stung. Do not bandage or cover the affected area until the liquid is dry.