You do not need to enter
information regarding your section 125 (cafeteria plan) for medical expenses
anywhere on your tax return.
Unlike contributions made to HSA and other tax-advantaged medical
accounts, there is not a reporting requirement for cafeteria plans or Flexible
Spending Accounts (FSA) on your tax return.
The money that is put into the section 125 or FSA is pre-tax money. Therefore, there is not an additional
deduction that you can take for those amounts.
https://ttlc.intuit.com/replies/3302130