Neurological Pain as a Result of Mouthwash Usage—A Case Report

Pain in pharynx is one of the leading complaints raised by patients with the common diagnosis pointing to: sore throat, odynophagia, pharyngitis and tonsillitis [1]. Recently, an interesting case of a 47-year-old patient (male-dentist) who claimed to have acquired a sudden sharp pain in pharynx (throat) location was observed. The absurd strength of the pain prevented the patient to even hold short-length verbal communications. The preliminary examinations by a general practitioner (GP) failed to conclude anything from the examinations; therefore the patient was referred for further investigation by specialists. The additional tests and examinations such as laryngoscopy and MRI did not suggest any leads to an appropriate diagnosis either. Inadvertently, the patient had noticed a strong correlation between the pain and the daily mouthwash dose. This was later investigated further and confirmed by the patients’ trial methods. Conclusion: In this case report, it is suggested that mouthwash may contaminate the oral soft tissue and cause a neurological pain.