Anti Viral

Viruses might be playing a role in some patients' LS.

A viral aetiology has also been proposed as human papilloma virus was found in 50% of paediatric preputial tissue affected by LS.
(Recent advances in understanding urethral lichen sclerosus, 2016.)

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Treatments

Neosporin has been found to have anti-viral effects, despite being intended as an anti-bacterial.

One antibiotic, neomycin, which decreased the herpes virus and symptoms in infected mice. They studied gene expression in the treated mice and observed greater expression of genes that are stimulated by interferons — proteins that block viral replication. Through further investigation, they determined that neomycin triggered a receptor in the mouse immune cells that responded to the antibiotic as if it was a viral infection.

The researchers also confirmed neomycin’s antiviral effect in mice infected with the flu and Zika viruses.
(Source, 2018.)

(Those results were for neomycin, which is one of the 3 ingredients of neosporin, along with bacitracin and polymyxin. (Source.))

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A more conventional topical anti-viral: Acyclovir.

Essential oils that have been claimed to be anti-viral: cinnamon, oregano, peppermint.