How can putting off treatment of multiple sclerosis by a few months after initial diagnosis (because of a temp. loss of insurance) impact prognosis?

Not really: Diagnosis often happens years after symptoms first start. Best treatments will,start early and limit symptoms and perhaps save brain tissue, but waiting a few months should not have significant downward effects. Do attempt to seek treatment options courtesy of,the companies that make and sell these treatments as they often will,provide them free to the needy consumers

My experiences: Every MS patient is different, and experiences a varied and unique disease presentation, but we strongly suggest starting disease modifying agents as soon as diagnosis is confirmed to prevent disability. That said, delay of a few months may be trivial in your case, but, drug companies have programs for those without insurance, and no real reason to delay treatment. Discuss with your neurologist.