What is a good treatment for someone who has optic neuritis in 1 eye due to ms? Is MS treatment meds enough or is it best to also add another for this

2 separate category. Optic neuritis would be classified as a relapse, and is best treated with EITHER intravenous Methylprednisolone or ACTHAR. The standard disease modifying agents are designed to prevent this, and should be continued even if a relapse occurs, but the more potent the med, the less relapses you will have. Tysabri (natalizumab) is the second most potent med on the market, currently.
Steroids . Ms medications like tysabri (natalizumab) is not enough to treat current acute episode of optic neuritis. You need high dose IV or oral steroids for 5 days.