Acid, Boric.
Acid, Camphoric.
Acid, Carbolic: as spray and gargle.
Acid, Sulphurous: by fumigation or inhalation.
Aconite, Sweet Spirit of Nitre, and Citrate of Potassium, in combination: valuable in early stage.
Actæa Racemosa.
Alcohol.
Ammonium Acetate, with Nitrous or Chloric Ether.
Ammonium Salicylate.
Antispasmin.