Doughnut hemorrhoid cushion Can be used to improve bad posture and relieve leg pain while driving or sitting for long periods. Doughnut hemorrhoid cushion – We use a U shaped ergonomic design recommended by orthopedic surgeons and medical doctors across the globe for treatment of chronic or acute pain by alleviating pressure in strategic areas. VERSATILE DESIGN – Portable, small and machine washable with a soft exterior and. Can be used as an office chair cushion or car seat cushion. NOTE: Our seat pad is designed to help relieve aches and pains but with some people it will not completely eliminate all symptoms.