Sure, Megumi discovers the truth about Toji being his dad in the manga. It's a crucial plot point that brings about various changes in Megumi's storyline and his relationships with others.
Yes. Wolverine's comebacks in the comics are a staple. They're usually tied to major events or story arcs that have a significant impact on the overall comic narrative.
There's a possibility of demodex mange coming back. Sometimes, even after successful treatment, if the underlying causes like hormonal imbalances or certain skin conditions persist, it might return. Regular monitoring and maintaining good skin health are crucial.