Get your taxes done using TurboTax

Try the following:

Go the Federal Taxes tab and select Deductions & Credits.

Select I'll choose what I work on.

Scroll down to Medical, Medical Expenses.

You should see the following screen but with a different amount listed. 

Based on how you answered this question, it may affect your ability to enter information.  If you would like to enter expenses, select Yes and you will be able to proceed with the detailed input.