My two year old lab who has been house trained since three months has suddenly started messing in the house. I think it's the rain he doesn't like. I've started putting him out regularly but he has weed on the rig a couple of times. I soaked and scrubbed but I can still smell it in the room, and I'd you get close to the rug it stinks. Does anyone have any tips on house to get rid of the smell and neutralise it.