If the child is teasing the dog, maybe she needs to learn to play with him appropriately. Can you teach them to play fetch together, or some other game the dog likes and won't be scared or annoyed by?
Does the dog like to be brushed? Could you teach her to gently groom him, brushing him out?
Dr. Seuss~DLH (brother's cat)~June 2007-
Misty~DSH (my cat & Mooby's mom)-?-
MooBoots(Mooby) ~ DMH(Mom's cat)~July 21, 2008-
Sunshine~ Golden retriever X white german sheperd (Dad's dog)~October 24, 2008-