I traveled to see a doctor (naturopathic) doctor in Michigan as I developed symptoms of mono for three months that I could not get out of after a viral (CMV) infection. The iodine and lysine is his protocol. My primary physician will order the ioderal for me and checks my iodine levels. Originally, when I had the mono symptoms, my iodine level was checked and I was 20 points below the normal range (using Quest Diagnostics as the lab). If you are very sick from a virus (such as long term covid), it is worth a trial for a week to see what happens. You could always get off of the lysine and iodine. They are supplements that a persons body has. My family uses this remedy when we feel that we are coming down with a virus. All four in my family uses this-each had covid twice in six years-and it amounted to nothing but an occasional cough and a hard cold for one day.