Yupelri is an anticholinergic and is sometimes given when other medications may not be working. It takes a while to build up in the body. However, beware of side effects - such as swelling lips, tongue, etc.
Sometimes treatments are worse than the symptoms. Good luck and feel better.
Have you considered Brovana (Arformoterol Tartrate)? It is via nebulizer and 2 x per day. I have found it very helpful with my Albuterol for nebulizer as well. I have been weening off of Prednisone and this has helped to stabilize me (I was hospitalized for asthma). It may be worth a try, but look at contraindications before trying any medication - checking for interactions and medical conditions.