Previous/next post in spec category

Ok , so i find a lot of discussion of pre/next listing but,
I need to have next/prev buttons on special category that i chose. I dont wana buttons apears on others categories just @ special one or ones.
For example i wanna put some pictures so users can comment on them and share them as well but for easy nav i need prev/next post shown in single.php for special category.
ty for asap answer.