It works by reducing the swelling around the mouth ulcers and alleviating the pain associated with the mouth ulcers. Benzalkonium chloride is an anti-bacterial agent. It promotes the faster healing of the mouth ulcers by preventing the secondary inf
... more It works by reducing the swelling around the mouth ulcers and alleviating the pain associated with the mouth ulcers. Benzalkonium chloride is an anti-bacterial agent. It promotes the faster healing of the mouth ulcers by preventing the secondary infections.
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