If she does not want to have her hair brused cut her hair. If it is fine it is going to tangle a lot if it is not brushed right. Johnson and Johnson makes a product that you leave in to help with the tangles. May be next time she has a bath put some conditioner in her hair and leave it in there. hold down the part of the hair that it not tangled then take a big toothed comb through the part that is tangled. In general that is going to be the best thing to do with the hair when it is long and has tangles.