My son while skiing in Utah,did a high jump and came down on his tail bone,landing very hard. Since then it hurts a lot when he sits in hard chair or rides a bike,in fact he cant ride a bike atall. He needs to know if anything can be done for it or what he can do to have less pain.His mom. He is now 54 yrs old and this happened 20 yrs ago,but is getting much worse now.