Make sure that the hair to be removed is long enough for the wax to grip. It has to be at least 1/8 inch. So schedule any other hair removal sessions accordingly.
If excess hair is longer than 1/4 inch, it becomes more painful to pull out. It is better to trim it for best results if it is longer than that.
Skin needs to be clean and dry before you begin for the wax to adhere properly.
Avoid waxing altogether if you have diabetes, varicose veins or poor circulation. If you have been using medication or lotions which cause thinning of the skin you should not use waxing as a hair removal method until the skin has recovered. This will be some weeks after you have stopped using this medication. You should also avoid areas of broken or irritated skin or skin with warts, spots, moles or sunburn.
Lightly dust your skin with powder in case your skin is moist and wax is not adhere properly.
Apply a bit of the wax to a small area to test if any allergic reaction. If you don't have any reaction to the wax, you should be fine to carry on waxing.