While I don't think it's a good idea to use dish washing liquid on anyone's hair, I don't think the OP meant any real harm by doing this and may have had good intentions.
OP, I know you mean well and nurses have one of the most thankless jobs in the world, it really may not be a good idea to use dish washing liquid on someone's hair, even if the results are good. Dish washing liquid can be very drying and really isn't meant to be put in one's hair.
~Nick Chavez is my favorite vendor on QVC and Alberti Popaj is my favorite QVC host.~
Nick Chavez now has his own sub-forum under the My Favorite Brand folder