Lifestyle, diet high in omega 3 oils & vitamins D/B12 help.
Vitamin D and Vitamin B12 may play a role in reducing relapses when deficient. Vitamin D is a potent immunomodulator and vitamin B12 plays an important role in the central nervous system.
M José Bagur, M Antonia Murcia, Antonia M Jiménez-Monreal, Josep A Tur, M Mar Bibiloni, Gonzalo L Alonso, Magdalena Martínez-Tomé Influence of Diet in Multiple Sclerosis: A Systematic Review. doi: 10.3945/an.116.014191 Adv Nutr May 2017 Adv Nutr vol. 8: 463-472, 2017 http://advances.nutrition.org/content/8/3/463.abstract