2 days ago I inhaled a lot of dust. I cleaned my nostrils. The next day of inhaling dust i found a lump somewhere in between my throat and the chin. The lump doesn't really hurt and moves a little if I try to move it. 1 or 2 days later, today, my nose feels congested. There's mostly watery discharge coming out of the nose instead of mucous. There's also a bit of irritation in the upper mouth area, as if there's going to be a cough. Should I be worried? And what should I do? Will it go away on its own? Also, I have been taking steam.