Dale answer is very good, applies in most contexts.

      My additions (hunches here, not exactly answers), more of a  set of sentences to be "proofed"/commented/confirmed/changed etc...

       I will assume the ones not commented (if any), as being natural way of speaking in English.

       His/her urge to help only made the situation worse/only worsened the situation.

      - In the urge to help, he/she only spoils the guys, this way they never will be independent enough.

     - It turn out that his urge to help only made the problem ten times worse, in the end.

     - In his eagerness to help, but without the necessary skills only  put him and the people around in a dangerous situation.

     - His urge to help the guy involved in an accident only damaged the guy still more.

      - His urge to help others problably made him sorry this time, it didn´t work; the inevitable bad result only brought stress, anxiety, and trouble for him.

       - Despite his good intent, his urge to help, along with doing the innapropriate action only made things worse.

        - What a mess he has done, after not resisting his urge to "help"!   (kinda ironic...)

         - His urge to help (without thinking) and making risky moves only made things worse.