Bua gumyog raws li cov pos hniav los yog glycerin resin hom edible yas li ib tug colloid, ntxiv nrog qab zib, starch syrup, mint los yog brandy essence thiab lwm yam, thiab sib tov thiab nias.
Thaum tshuab npuas nrog cov pos hniav npuas, kis thiab ua kom cov pos hniav ua npuas nrog koj tus nplaig, thiab lo rau ntawm cov pos hniav sab sauv thiab sab hauv ntawm koj cov hniav pem hauv ntej; Tom qab ntawd siv koj tus nplaig los thawb qhov nruab nrab ntawm cov pos hniav npuas tawm ntawm qhov sib txawv ntawm koj cov hniav sab sauv thiab sab qis.
Nws yog tshwj xeeb tshaj yog hais tias cov menyuam yaus uas noj cov pos hniav thiab lwm yam khoom qab zib uas yuav tsum tsis txhob nqos tau yooj yim nqos nws mus rau hauv txoj hlab pas los yog bronchus, uas yog kev hem thawj rau lub neej. Yog li ntawd, tsis pub menyuam yaus noj.
Cov pos hniav npuas muaj txiaj ntsig zoo rau qhov ncauj kev noj qab haus huv, uas yuav tsum tau soj ntsuam los ntawm nws ob yam ntxwv. Ua ntej tshaj plaws, cov pos hniav npuas yuav tsum tau zom hauv qhov ncauj tas li, uas yog qhov zoo rau qhov ncauj noj qab haus huv.