General :: SED Usage To Delete An Injection?

Trying to delete injected code (one line) into multiple .php and .html files of a server with sed command but it seems there is a problem with sed when " and / are included in the string to be deleted.The string that needs to be deleted is <img heigth="1" width="1" border="0" src="http://imgddd.net/t.php?id=16382836"> However the last part of the string (id=########) is not constant (the number is variable) so I used the following:find /home -type f -iname index.html* -o -iname index.php* -o -iname index.html* -o -iname index**| while read FILE; do sed -i "s|<img heigth="1" width="1" border="0" rc="http:\imgddd.net*">||g" "${FILE}"; doneFor some reason it successfuly deleted the injection on .html files but NOT in .php files