Snake has substrate in it's heat pit, should I do something?

[Skyrivers]

My snake has a tiny bit of substrate (coconut fibre) in one of it's heat pits. It's just so much that it makes the heat pit look brown while the other pits are whitish/pinkish like normal.
He rubs his nose against things and has put his head under water so I assume he wants to get it out.
Should I do something or leave him alone? I don't wanna probe around his nose or pits.

You can get a wet cloth and let him crawl through it to see if it helps and get a substrate that is not coconut fiber. I personally don't like the Coconut fiber stuff for many reasons that this is one of them.