Damages for Personal Injuries(p145)

If you receive an amount in settlement of a personal injury suit, part of that award may be for medical expenses that you deducted in an earlier year. If it is, you must include that part in your income in the year you receive it to the extent it reduced your taxable income in the earlier year. See Reimbursement in a Later Year, discussed under How Do You Treat Reimbursements.

If you receive an amount in settlement of a damage suit for personal injuries, part of that award may be for future medical expenses. If it is, you must reduce any future medical expenses for these injuries until the amount you received has been completely used.