I haven't done a steam inhalation treatment since I was a kid. I did a couple last night and one this morning. It made a great difference to The Worst Cold I Have Ever Had.
I poured a tablespoon of Vicks steam therapy gop, whatever it's called, into a large bowl and added some boiling water. Sat with my head over it, covered with a towel and inhaled through my nose and through my mouth, alternating. What a head rush. It immediately cleared my sinuses. Ahhhhhhh... relief.