As within, so without! I would suggest she cleanses/detoxify her temple. She should perform the Full Body Cleanse (see article "Sea Salt Soak" on the site) and use tea tree, niaouli, and eucalyptus oil in the water. Remember, as within, so without, the external reflects the inner, i'll be doing an article soon on lice!
Full Body Cleanse
Full Body Cleanse Companion (eBook)