Formula Caught In Feathers

[Bambi04 0]

The budgie I'm hand rearing has formula drip out of the sides when he is eating. I wipe it off but it has gotten large chunks in his cheeks and on his chest feathers. His cheek formula is connected to his skin so I can't cut it all away. His chest some of the feathers came out, stuck to others with formula. I cut that out, but then I saw what looks like two feather ends stuck under his skin, and they were bleeding from the tips. They stopped after not much blood, but I don't know what the things under his skin on his crop and how to deal with the large formula. They are too small to be cysts.about half a cm. Mum says when he moults it'll fix itself but he is only three weeks old. I can't afford a vet.