My nephew who is ASD, BiPolar, visual impairment, and 6'3" tall fell this afternoon getting of Doom Buggy in Haunted Mansion luckily for me a very kind gentleman immediately came to help me assist him to get back up off of floor. The CMs did stop the ride but did not provide me any assistance in helping him to stand up. I was a little surprised that they did not even check to see if we were ok. By the time we arrived back at the WL my nephew was in significant pain. I called front desk and was told to report incident to manager who did offer medical assistance and informed. Me that CMs are not allowed tp provide physical assistance on or off of rides. I called our regular pharmacy at home for advice as I am concerned about his pain and possible inflammation and the compatibility of over counter meds with his large number prescription meds. I was advised to give him Tylenol and ice packs on back to relieve pain n possible swelling. I am posting so that others realize that CMs are limited in the assistance they can provide to persons w/disabilities. Do not take for granted they will help with any lifting or guiding in or out of rides. Also ride such as Haunted. Mansion and Space Ship Earth who used to slow down moving walkways no longer do so. Nor do they allow you to access alternate entrances unless you are in a wheelchair. We are here at the WL until Tuesday when we move to. Port Orleans Fremch Quarter for 2 nites before going home. Hopefully no further mishaps!