Hi ,
Thanks for writing in.
Dienne 35 is hormone based
contraceptive it may cause pigmentation as a side effect.
But pigmentation can occur due to variety of reason like like
lichen planus, post inflammatory,amyloidoisis etc.
Proper examination is required for diagnosis of the cause.
I encourage you take visit to a qualified
dermatologist for examination and proper treatment.
Visit a dermatologist for some clinic based procedure like chemical peeling and
laser.
Hope this helps.
Regards
DrSudarshan
MD
Dermatology.