If such care is medically necessary, as prescribed and certified by a licensed health care provider, then it can be treated as a deductible medical expense if you itemize deductions. For 2016, only out-of-pocket medical expenses in excess of 7.5% of your adjusted gross income can be deducted. Starting in 2017, the AGI threshold rises to 10% unless Congress changes the law.
For calendar year 2007, taxpayers covered by an HDHP may contribute up to the lesser of the annual deductible or $2,850 ($5,650 for family coverage).