You can deduct unreimbursed qualified medical expenses, including medical and dental insurance premiums.
But here's the deal about deducting medical expenses: Only the amount of your medical deductions that EXCEED 10% of your AGI for the year (7.5% if you're 65 or older, for a little longer) are deductible. So you'll need significant medical expenses to reap any benefit from this deduction. You must also itemize your deductions on Schedule A. See more info below.