Acid, Carbolic: mosquito-bites and scorpion-stings.
Acid, Salicylic.
Aconite.
Alum: for scorpion-sting.
Ammonia or other Alkalies: in stings of insects to neutralize the formic acid; and in snake-bite.
Ammonium Carbonate.
Aqua Calcis: in stings of bees and wasps.
Arsenic: as a caustic.
Calcium Chloride.
Camphor.