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excessive hairs on face can be a symptom of hirsutism
),or other endocrinal disorder. you cant take just laser
without final diagnosis. please consult a gynecologist to find out the problem and then proceed. sometimes even with regular medicines hairs will go off and no laser required. you are very young. please visit the doctor in AIMS only. they will guide you.
I hope I answered your query. Wish you good health.