Are Personal physical injuries or physical sickness settlements taxable?

Are Personal physical injuries or physical sickness settlements taxable?

If you receive a settlement for personal physical injuries or physical sickness and did not take an itemized deduction for medical expenses related to the injury or sickness in prior years, the full amount is non-taxable. Do not include the settlement proceeds in your income. 

BUT 

If you receive a settlement for personal physical injuries or physical sickness, you must include in income that portion of the settlement that is for medical expenses you deducted in any prior year(s) to the extent the deduction(s) provided a tax benefit. If part of the proceeds is for medical expenses you paid in more than one year, you must allocate on a pro rata basis the part of the proceeds for medical expenses to each of the years you paid medical expenses.