It is an amino acid that helps increase the immune system. In keeping with my vet, Lysine is secure for cats and has no harmful [unintended effects](https://git-internal-2024.mietubl.com.cn/agustinhedley/lawyer-in-my-area2293/wiki/Weight+Loss+Or+Hair+Loss%253F). Ideally search for a Lysine supplement in 625mg tablets in order that you do not have to worry about [halving tablets](http://git.kuade.com9000/vickeyfetherst/rod1981/-/issues/3) or taking too much on a daily basis.
The cream docosanol (Abreva) is sold over the counter. In order to replicate, the herpes virus requires arginine , one other amino acid that is frequent in meals and necessary to human life
