Mum has had PSP for about 5 years and resides in a care home......she fell and broke her hip on Tuesday and had a replacement fitted yesterday ( Thursday ) . Because of her age, 84, she was given an epidural for the procedure . Back on the ward she had an oxygen mask on for about 6 hours and we noticed a big improvement with her speech. Wondering if anyone else has noticed any difference with extra oxygen. Could it help?