Dirt falling on carpet

Dear brother today i was in my room and took my clothes off and was having a shower. i scrath my private part which was under my bowel and some dirt falls on the carpet. I pour water on my hands and splash on the carpet and it became wet and i think it covered the area of dirt. Does carpet become clean.

Also does the carpet become najis in the first place.

Also what should i do with the things that might have come in contact with it. I have stepped on the carpet with wet feet.