How can you clean the downy ring out of the inside of the washing machine?

I have a great washing machine, and we use downy with every load (we can't use the other kind of fabric softener because I am allergic and so is my 9 month old baby!) Anyway, it has started to make a ring of green glop on the outside of the washing basket and it is pretty nasty. I have tried scrubbing at it with a towel as I put it into the machine, but that doesn't help. Any other ideas?How can you clean the downy ring out of the inside of the washing machine?
Wash a full cycle, no clothes inside, with high water level, with 2 litres of white vinegar, any cheap brand will do. This will clean your washing machine interior, as well as the pipes. Have you considered using white vinegar instead of fabric softener? It would keep your machine clean, clothes won't fade, no skin irritation.How can you clean the downy ring out of the inside of the washing machine?
Does your washer have a clean me cycle like after 100 washes (nice feature) if not use vinegar on a rag and get scrubbing.
Spray it with a mixture of HOT water and white vinegar(75/25)and scrub with a microfiber cloth.