Hi timeaamit. For some clients, hyperpigmentation can be averted by icing immediately following treatment. I do not suggest using oils or creams on tissue that tends to hyperpigment as oils and creams keep the area hot, longer. Use something cooling like an aloe vera gel.
Also, which school did you attend? Did you have an opportunity to use insulated probes much? Are you familiar with how to modify your working style and equipment settings with an insulated probe? This might be helpful as - when used properly - the insulated probe will concentrate the activity lower in the follicle and might minimize the hyperpigmentation but icing is still suggested.
Using the thickest probe possible is ideal. Do you release energy at different levels within the follicle? Are any of your, "zaps" close to the epidermis?
To date, I have never seen a dermal papilla come out of the follicle and hope you learn to upload pics so that I have a better idea of what everything looks like.
Arlene Batz, CPE: Educator, Board Certified Electrologist, NYS Licensed Esthetician. http://endunwantedhair.com