What is the ruling on delaying prayer for physical therapy sessions that are difficult to obtain, and what is the ruling on uncovering part of the 'awrah during treatment?

We ask Allah to grant you healing and well-being. The basic principle is that every prayer should be performed at its appointed time, and there is no hardship upon you in performing it at the center. If that becomes difficult for you and you fear the expiration of the time, then it is permissible for you to combine the two prayers (Maghrib and Isha) at the time of one of them, out of necessity, according to many scholars. As for the uncovering of 'awrah for medical treatment, there is no sin in that. And if it becomes uncovered against your will, it does not harm you, but you must hasten to cover it.