You don't need ONE MP you need Parliament to debate it. One MP would say things needed to change but she/he doesn't have the power to change anything. If Parliament demands a change to things the Health Secretary will take notice. I know what I'm talking about so trust me on this please.
Organising a petition, as I suggested, is easy. Even if doesn't get the required number of signatures you'll have tried at least. Complaining on this forum might be ok in terms of venting but nothing will change unless someone takes some action. Unless anyone has a better idea why not try 38 degrees as I suggested?