Possibly. Your doctor is the key. If you want to take a tax deduction for incontinence supplies, they will have to be used as part of a treatment plan that your doctor has ordered.
In addition, if your doctor has prepared a treatment plan, the cost of those supplies may be covered by insurance. This would be better than a tax deduction, because it could reimburse you dollar for dollar.
The cost of medical supplies paid by an insurance company is not entered into TurboTax. Instead you simply don't enter those amounts as part of your medical costs entered in TurboTax since you didn't pay them. You could however, enter any premiums you paid to the medical insurance company in the "Medical" deductions topic to account for the portion you paid out of pocket.
If you paid the costs out of pocket for medical supplies as part of your treatment plan you enter those as "Medical Supplies and Equipment" in the "Medical" deductions topic.