Hi. My little Rachel has just grown out of her reflux (yippee!!!!). When she was 6 weeks old she projectile vomited on the cement just outside our front door. Being very exhausted (naturally) I just left it there and thought that I might clean it up once I felt up to it. However, a few weeks ago, I tried to clean it with boiling water, then detergent, boiling water and a scrubbing brush. It's still there, as obvious on the nose on my face. Has anyone got any suggestions to remove it, so that it doesn't greet anyone who comes to our front door?