medicine for thick mucus in throatthick mucus buildup in throatexcess thick mucus in throatthick mucus stuck in back of throatconstant sticky mucus in throatconstantly clearing throat of mucusfrequent mucus in throatoverproduction of mucus in throatthroat always has mucusmucus in throat constantlymucus in throat allergiesconstant mucus in throat and nose