PATCH activated charcoal bite relief spots are the natural way to help bites, stings and itches go away. How it works: Activated charcoal is highly absorbent and works like a magnet to the impurities in the bite wound. Once the impurities are drawn out, inflammation and redness is reduced minimising the risk of infection which helps promote faster and safer healing of the wound. Apply spots to mosquito bites, spider bites, bee stings, bug bites and other irritated wound types.