Hair Darker After Lightsheer Diode

i am an indian girl. i went in for light sheer diode for side locks , chin and upper lip. my hair on side lock was fine hair but after the treatment i noticed that hair has become darker, slightly coarse and longer on side locks and on neck area also where i did not have hair will subsequent treatments with light sheer diode help ? the treatment was successful on upper lip area? pl advise ,im very tensed and worried?