well it depends on the teenager because not all of them are the same....
It depends on the circumstances and the problem.
Puberty is the worst for teenagers
There could be many reasons for this, one is this teenager could be using drugs another could be the teenager has depression.
When you are a teenager your skin becomes very oily and your pores fill up with oil and you get acne.
No
Get a girlfriend/boyfriend that you truly love and he/she loves you then have sex with them, problem solved!
having the same problem. not much going
Vitiligo
Nylon toothbrush is the problem, the problem is not pig skin
Skin cancerEye cataractSuppression of skin cancer.
It depends on what kind of shin problem/ disease you have. There are different solutions for each one. You can probably get good information about your skin problem from a doctor.