As described in the article on antioxidants, boosting production of the endogenous (internally produced) antioxidants is much more useful for reducing oxidative stress than taking Vitamin C or other antioxidant supplements
Omega-3 PUFAs offer cardiovascular, neurological, and psychiatric benefits due to their potent anti-inflammatory, anti-nociceptive, antioxidant, and neuromodulatory properties, which modulate neuroinflammation, neurogenic inflammation, pain transmission, enhance mitochondrial stability, and mood regulation
It's important to determine whether endometriosis, or something else, is the cause
Steckelings UM, Kaschina E, Unger T