Shuriken system - collision

Hi, i bet the answer to my problem is really simple and it will make me feel stupid. I did check through google, i did try what i found in previous Unity threads and yet i can't pull this simple thing off.

I have a fire particle system and i just want my player to get damaged when passing through it. I have collisions and sendcollisionmessage enabled in shuriken, i have it set to only interact with my player's physics layer and at first i just had a script on the fire particle. (even tried...

Shuriken system - collision