Medical and Dental Expenses
To take a deduction for medical and dental expense, your expenses must exceed 7.5% of your AGI. The deduction you can take is for the expenses in excess of the 7.5%. One significant deduction you might be able to take is for the premiums you paid toward your medical and dental insurance - if those premiums were paid with after-tax dollars.
In other words, if you did not pay any income taxes on the dollars used to pay the insurance premiums, then you cannot deduct those amounts. You can take deductions for prescription medications, Medicare Supplemental Insurance, routine and emergency medical care, and the costs of certain expenses such as lodging if the expense is associated with receiving medical care.