If those amounts are coming out of your pay "pre-tax" -- as payroll deferrals, which are quite common -- then no, you can't deduct them since you're already getting a tax break on the front end.

If these are coming out of your pay as "after tax" earnings, and you're not reimbursed for them, then you could claim an itemized deduction on Schedule A as a medical expense.  If that's the case, you'll enter them by following this pathway: Federal Taxes (or Personal in TurboTax Self Employed) > Deductions & Credits > Medical > Medical Expenses and follow the prompts.