Do you think weight gain could help with acne outbreaks?

Wrong approach. Somebody told you that trying to get fatter would help your acne? I'm really sorry that there are such foolish ideas out there -- and especially that you're not managing your disease scientifically. If your acne is episodic, a salicylic acid wash may be enough to keep it at bay, or topical benzoyl peroxide as tolerated. Manage it, and if you're not clear in two weeks call your physician.