In my opinion, if the math does not make her symptomatic I would let her try, even if she can do 5 min and that's it, then that's a start. with this situation, you will get two pieces of advice on opposite ends of the spectrum, some will say, no, do not attempt it, others will say if you don't use it you will lose it. I have both views told to me from people in the medical field. I am glad we started my son back with math. He took his time, at first it is difficult, but then all of a sudden, things started falling back in place. The stress of him getting behind and not being at school was not good for his brain as well. recovery is aimed so much toward each individual and what makes them symptomatic, what they can/can't do. Without trying you won't know what they can/can't do. It's such a hard process, I wanted a set of rules, but there are none in recovery. She just really needs to listen to her brain and what it can or can't do. Let's say reading doesn't bother her, I would say go for it, until she feels worsening symptoms starting to come on. Then switch to something else as Mark stated. I was told for my son to attempt puzzles, such as suduko etc (as long as it doesn't make him symptomatic) that every time info runs down a nerve path, the brain will recognize that that portion is not processing correctly and send a message to the other portion of the brain that that area needs help, and start the regeneration process. If that portion has experienced neuronal atrophy, then other portions of the brain will begin to make up for that portion that isn't working properly.----- but then I have also been told to rest that it is like a bruise that needs to heal, all by medical professionals that supposedly specialize in this. SO FRUSTRATING. but, I would say just really pay attention to what makes that headache go from a 1 to a 5 and let her learn to recognize the onset of that and learn how to back off. (I hope I am making sense) Mark has a fountain of info and has done a lot of research as well, he is a good go to and is on often on here. Slow and steady is probably my best advice. It is a slow, straining hard process, but the brain is amazing, it does heal itself, little by little, she will get better. My son was so much worse 4 moths ago, he is not fully healed, but has made great progress. Slow, but progress. He is driving, going to school, maintaining a 4.0 (he has honors and advanced classes) i didn't know what was going to happen four months ago. Now we are moreso dealing with mood, and depression-- which didn't seem to start hitting him until the 2 to 3 month mark. I just have to remind myself that his brain is healing, and this probably won't be a fast fix either. Church still sets my son off (he just is very tired towards the end of sundays, and will sometimes get a headache), I think it's the lights, all the people, the singing---it's a lot for the brain. i would say let her take Sacrament and then maybe excuse herself into the foyer and let her read if that isn't causing her symptoms. This experience is no fun at all, and I know how you are hurting for her, but I know things will get better. It's just slow