Beard laser removal questions... can't find answer

I have had two sessions, 6 weeks part. I have a dark mixed race black/white skin tone so using the yag laser.

The cheeks and under the chin, the hair removed beautifully, but the lips and chin are hell. The pain the soooo bad, and I can hear a weird zapping, sizzling sound.

The hair is very stubborn on this area, and in first session barely any of the chin hair went, and half of the tip lip went. In the second session, the top lip was cleared and much more of the chin, but the chin is still being stubborn.

My questions are:

Online they say wait 4 - 6 to go back and other say wait until the hair fully grows back to get the optimum result and more for you money. My facial hair was still smooth but I went back after 6 weeks, mainly for the chin and beard area that were left extremely patchy.

  1. If you skin is still smooth on the beard after 6 weeks, should you wait for the beard to fully grow back before going for the next treatment?

  2. The pain is excruciating!!! i am having laser on body too, but the beard is so painful, she has to pause, I want to cry lol

Is it true the pain becomes less with each treatment because, the second session even felt worse ???