The deductibility of medical expenses depends on your adjusted gross income. For 2018 the rules state that medical expenses would have to exceed 7.5% of your adjusted gross income in order to be deductible. Additionally, you would have to itemize your deductions in order to deduct medical expenses.
Below is a useful link explaining what may or may not be a deductible medical expense
https://www.irs.gov/taxtopics/tc502
