You should not comb or scratch your scalp before you apply a perm. Perms contain very harsh chemicals and you would not want to apply it to a scalp that has any open cuts.
By just patting your head
when you comb your hair the force you use is a pull force.
run the comb through the hair
No you dont you can but you dont another way is comb your hair then straighten it.
Brushing your hair stimulates the scalp as well as circulate blood. Everyone should brush or comb their hair before a shampoo service as it removes dirt & debris too. When you brush & or comb before shampooing you will feel a difference.
Use a wide set comb after showers to detangle hair. Use conditioner and product to keep from getting tangles. Detangling mist with a fine tooth comb works as well.
If a comb is stuck in your hair, try to cut little bits out of the comb, so it is easier to get the hair out. Get little pieces of hair out of the comb at a time. When the comb is out of your hair, your hair will be a little knotty so brush it out well. If you have detangling spray, spray that on your hair. This will work well.
When you comb your hair with a plastic comb, the comb will acquire a negative charge. This is because the friction between the comb and your hair causes the transfer of electrons, leading to an imbalance of negative charge on the comb.
Yes, it's OK to first wash your hair, towel dry, and then apply the comb in color while your hair is damp. This will help distribute the color evenly throughout your hair.
You would use a comb to arrange your hair.
just rub it through your hair and comb your hair with a comb
Hair is attracted to a comb because of the buildup of static electricity on the comb and on the hair. This buildup occurs when you pass the comb through the hair, and can be reduced or eliminated by adding a little bit of water to the comb or to the hair. Depending on the material of the comb, either the comb will be positively charged and the hair negatively charged, or it could be the other way around. Since opposing charges attract each each, the hair then is attracted to the comb.