Dealing with a Cold Sore During Stressful Times

i have a big sore coming in on my lip :( i can feel a huge bump underneath the skin and the start of a few small bubbles) it's the first one i've gotten in a while and i dont have my valacyclovir so i need to call tomorrow to have it filled for me. these always come in times of great stress or upset but they make me even more upset and stressed because i work in retail so a lot of people see my face. i would never judge someone for theirs and id hope people wouldn't judge me but stigma surrounding it is still quite strong especially in my city. i just wanted to mini-vent a little. any advice is appreciated or if you just want to leave some kind words for the next person