AC is highly recommended for waxing during summer and monsoon.
Moisturize your skin well after the waxing session.
No cuts, wounds, injury or infection on the area to be waxed and thread.
Skin of the area to be thread should not be too loose, else chances of cuts are too high.
Area to be waxed shouldn't be shaved in the past 3 weeks.
Hair should be at least 0.25 inch to be able to wax properly.
After threading/waxing, there would be possibility of getting skin redness / hives / inflammation, which subsides in few hours depending on person to person.