Step 1: straighten your hair. When you encounter a pimple, you might as well try to comb it slowly. It's easier to comb the knot, and you won't hurt your hair because you push too hard.
Step 2: Then, start from the middle of the hair and comb the ends. Gently comb your hair, not pull it.
Step 3: Massage the scalp radially with a comb around Baihui point to fully stimulate the blood circulation of the head. Finally, comb the hair from the root to the tip and straighten it all out.