The pegs facilitate the helmet treatment. They help separate the hair so the scalp receives maximum exposure to laser light. They’re also set at a distance so when contacting the scalp, it optimizes light absorption. Using the foam pads help ensure a better fit and less pressure on the scalp.
The rubber pegs inside the helmet are not supposed to hurt your scalp. Usually if there is a lot of sensitivity, this means that there is some inflammation on the scalp, but we would strongly suggest to continue using the helmet as this will get better over time.