1. Ua ntej, sib tov cov txheej saum npoo nrog 100 cees ua rau muaj hlau, muab tso rau hauv cov khoom siv hlau, muab tso rau hauv cov khoom siv hlau kom ua rau kom muaj kev phom sij, thiab tom qab ntawd, muab cov khoom siv tsis zoo, muab nws tso rau hauv cov khoom siv hlau, muab tso rau hauv qhov tsis txaus ntseeg, thiab tom qab ntawd nws tau muab cov khoom siv tsis zoo thiab muab tso rau hauv lub thawv.
2. Tso ib qho nyiaj tsim nyog ntawm cov khoom siv saum npoo av (txog 0.5-1 cm tuab) rau hauv pwm lub thawv, co nws rau 15-30 feeb (mos thiab nyuaj txhua lub sijhawm), thiab tom qab ntawd muab tso rau hauv qab txheej cov khoom siv.
3. Tom qab txheej hauv qab yog muab tso rau hauv, co nws rau 15-30 vib nas this. Tom qab 15-30 vib nas this, cov txheej txheem ntau lawm yog ua tiav.
4. Kho, nws yog qhov zoo tshaj plaws kom muab tso rau hauv ib puag ncig kaw, sim kom tsis txhob muaj hnub ci thiab cua, thiab cov dab neeg nws nyob hauv 1-3 hnub raws li qhov ntsuas kub thiab ib puag ncig. Nws tuaj yeem xa tawm ntawm lub Hoobkas tom qab 3-5 hnub ntawm kev kho.
