Treatment of Postoperatory Sore Throat with the aid of homeopathic remedy Arnica Montana: a report of two cases. Dr. Dionysis Tsintzas. Msc. Dr. Georges Vithoulkas. Abstract: We present 2 cases of severe postoperative sore throat, hoarseness, aphonia, and dysphagia, after a laryngeal mask insertion, who were treated successfully with the homeopathic remedy Arnica montana. Three doses of Arnica montana 200CH were given to the patients over 36 hours. Although the symptoms were very intense, the remedy was very effective and cleared most of the symptoms in 48 hours. See here the article.