Vitamin C creates hydrogen peroxide in the body which literally oxidises any viruses present.
Lysine is an amino acid which knocks out the amino acid argenine - the virus uses arginine to replicate.
Their combined synergetic value is obviously perfect for you ... synergy is a scientific theory which argues that often the sum of two items can be more than their separate totals simply added up. Ie if witamin has a value of 2 and lysine has a vlaue of 2 theor combined total when taken together could be 10 istead of 4. we are all different and different peoples bodies cope with the virus in different ways or fail to cope with the virus for different reasons. Maybe you were lacking in lysine (diet low in certain foods) and also vitamin C (again down to diet or drinking/smoking/eating bad foods/ stressing too much)
I am really glad you found a combo that works for you!