Methylene Blue As An Anti-COVID-19 Mouthwash In Dental Practice

[Orome]

https://www.bjoms.com/article/S0266-4356(20)30543-X/fulltext

It seems there is more and more evidence piling up that MB is another potential "swiss knife" (Aspirin and Cypro are probably other ones).

[...]In addition to the COVID-19-resisting mouthwashes mentioned by the authors, we would like to suggest methylene blue (MB) as a potential oral rinse to reduce the viral load in aerosols and drops during oropharyngeal procedures.
MB has many therapeutic uses.

It is used as a bacteriostatic stain and as an indicator dye. It is a urinary tract antiseptic and acts as a stimulant to mucosal surfaces. It has been described in the literature for the treatment of lower back pain, oral lichen planus pruritus ani, neuroinflammation at the microglial level, oral mucositis, and as an early diagnostic tool for oral cancers and precancerous lesions.

Burak et al studied MB as mouthwash for periodontal therapy and found it superior to chlorhexidine gluconate. As MB is an inexpensive and ubiquitously available medication, it may have a considerable potential role in the diagnosis and treatment of various oromucosal conditions.[...]