How to add html tags in drupal 7 menu?
Maybe your problem can be solved using the Menu HTML module. It seems to have been designed to solve issues such as the one you describe.


  This very simple module adds a checkbox to the menu item edit form and allows the admin to add html to the menu item title. The idea is to use this for external links for which you want to display a logo of the visited site or simply to add strong on some words.