Interesting question. 40 years ago, pulsed shortwave therapy (SWT) was commonly applied across the chest to promote resolution of fibrosis in condition of pneumonia. Used in children & adults at Brompton chest hospital in the UK. Currently, there seems to be so much opposition to using SWT - contraindications & precautions are plenty. I definitely am NOT able to comment on whether it would be beneficial in resolving the fibrosis that occurs with COVID-19. If you know of any research or of anyone using it for this purpose it would be so helpful to post something on this website.