She really should be evaluated by a Physical Therapist. There are several different degrees and types of labrial tears. Once she gets an appointment I would suggest going to one of her PT sessions to see what exercises she is doing, and to discuss a program you can continue with her. (As a side benefit I have developed a good professional relationship with several PTs who I have met through my clients).
I have had a torn labrum and had surgery on it. The surgery is pretty easy and worth it. I have found that strengthening everything in that region is beneficial if she is favoring it! I still have strength issues on that side. Anyways, I also found that keeping the psoas muscles loose was extremely beneficial especially up where it connects into the abdomen. I use a tennis ball and lay on it.
I found that my tear was caused by extreme hip flexion to the point where the ball of my femur was hitting the labrum and slowly causing a tear. If that is the case with your client, avoid exercises in flexion (riding aero on a bike).
Exercise won’t heal a torn labrum. You can strengthen the surrounding musculature to assist the connective tissue in stabilizing the joint. Before doing any exercise or working with a client with such issues, clearance to exercise is absolutely necessary.
Once cleared to exercise, the entire kinetic chain should be assessed for a number of potential issues from imbalances to ROM limitations or joint laxity. Everything depends on the client’s overall readiness to not only exercise, but move correctly at every joint. There are so many subtle things to be aware of and be able to observe and understand the integrated relationship to the client’s mechanics, I would need to assess the client to give more advice than this.