HI N.,
I am an esthetician with 13 years experience with glycolic peels and 5 years experience with Microdermabrasion. While the side effects you are having could be considered in the normal spectrum for a peel that you would receive in a dermatologists office they are in NO WAY normal for a salon procedure! (Salon estheticians should only be using a more mild solution) Also, if you have never had glycolic before you absolutely should have received a patch test of the product 24-48 hours prior to having applied to the entire face. This is the facialist's failure in not doing so. Also, glycolic and microdermabrasion together is a very intense treatment for someone who hasn't been having regular treatment.
I would suggest STRONGLY that you stay out of the sun and wear a "physical sunblock" with Titanium Dioxide in it (stings less on irritated skin than one with chemicals) until your skin has healed or you may see a worsening of your hyperpigmented areas. Also, a little bit of hydro-cortisone cream (OTC) can help wiht the inflammation. DON'T use any home care products with glycolic, salycilic, vitamin A etc. Only wash with cool water and a your hands until all inflamation has subsided. Also, RUN LIKE CRAZY form that unprofessional, inexperienced esthetician!!!!!
So sorry you had to go through that!!! THe up side is, with proper after care, your skin may actually look pretty good after the peeling is through!
-K.