Herpes simplex virus (HSV) infections can be treated with direct acting antivirals like acyclovir and foscarnet. but long-term use can lead to drug resistance. which motivates research into broadly-acting antivirals that can provide a greater genetic barrier to resistance. Photodynamic inactivation (PDI) employs a photosensitizer. https://www.voyageassistance.com/product-category/eggs/