Rehabilitation and Therapy Rehabilitation and Therapy Some IPF therapies can help make breathing easier and improve your overall well-being, though they don’t treat underlying scarring of the lungs. Oxygen Therapy Supplemental oxygen may be recommended if your oxygen levels drop below 88 percent either at rest or during activity, says D’Souza. This is often determined using a six-minute walk test, in which you walk for six minutes while your oxygen levels and breathing are…