Hey, first of all well done! Im super happy for you, i hope the healing process will be short for you! :-)
There's just one thing that i dont understand and i hope you can explain it to me:
You said that you are brushing your lips. So you are brushing the crusts? It means that you peel off the lips everytime when brushing them thats why you get no build up.. Am i correct? Because if so, unfortunately that is not a cure. Thats the same as biting/touching the lips :(
Also, if you want to know that youre really cured, just take a look at your lips - how they looked before you had EC. If you are healed then they should be "puffier" and more pink. You should have more skin on them, they are not supposed to be so thin anymore