Edited

Enzime 40 , By licking your lips all the time you are not putting any moisture into it , Any scientific reserch till day did not prove that salive has moisture , Man as one of the member said are you sure you have EC , Please dont lick your lips for a week and if they are Okay then you dont need any medications. If they chap then you have the answer . By licking your lips again and again you are taking away little moisture too which is left in EC lips.
Saliva has more acids in it which dries the lips and most of the time EC is due to licking and biting lips for a long time most of the time.

Regarding your french kiss and licking Experiment ,I think by doing this again and again you are not letting the new skin to form , You are eating the new skin so your GF when she is kissing you , I dont know if that tastes good. No offense man . You really need a physcia...

Why dont you and your GF stop eating and licking the new skin which is forming for a week and want to see if it works
and if works surely you can suggest doctors to introduce this in new books :-) Your suggesstion just makes me laugh like hell man even in my worst condition of EC .

Anyways Belated merry Chritsmas and advance happy new year.