sir ,i m 22 years ,(6 feet and weighs 75 kg )old boy i have severe form of acne for the last 4 years ,during earlier stages of treatement i followed the prescribed medicines although the acne used to go for a while but it came back regularly after consulting three different dermatologists for this i went to another dermatologists and after seeing the papers of all the prescribed medicines he prescribed me TRETIVA CAPSULE he asked me to avoid direct exposure to sunlight ,during early days of treatment it was all ok but one day i met a person he was effected with VITILIGO i asked him that havent you consulted any doctor he said that the doctor is saying yhat is uncurable and he should avoid sunlight exposure otherwise VITILIGO will spread after that i co related sunlight with VITILIGO and i was too asked to avoid sunlight as i was taking TRETIVA ,ever since it has become a mania for me that i might end up having a VITILIGO if i go out in SUN LIGHT ,and i want to know if taking TRETIVA has any relation with TRETIVA ,please help me SIR its been an year now ever since i have stopped taking tretiva but i still fear sunlight this problem has weakened my concentration not just on studies but on anything please help me