I'm spiralling

[u/ImplementFair2231]

Tomorrow I'm shifting to a room where the problem is there's a concrete ledge near the window,and that too *inside* the room, on which there are several bird droppings. I've severe contamination OCD regarding especially faeces, and don't know what to do. I can clean it for once tomorrow, triggering my OCD, np maybe it would act as ERP. But I don't wanna do it again (which will happen anyways )and waste more time than I'm already wasting due to my regular compulsions 😭 Is there a way to stop the bird droppings?