Saving for health care needs should be a lifelong pursuit. You can use brokerage accounts and HSAs to accomplish your savings goal.
HSAs provide a triple tax benefit, in that your contributions are tax deductible, the growth of the account is tax-deferred, and your qualified withdrawals (for health expenses) are tax free.
How Does a Health Savings Account Work?
Who Can Participate in an HSA?
What Health Insurance Do I Need if I Don't Have a Job?