You’re the second person who has mentioned this; I had never heard of it but will remember it.
Not pushing it...just saying it’s worked for me every time...our immune systems are all a bit different so others may not find it so effective. For me, it’s cheap and always at hand
BTW...buying the jumbo peroxide bottles is a waste of money, it breaks down quicker than you can use it, unless it’s needed for kindergarten class.