1) Amagwiritsidwa ntchito polumikiza singano ya vacuum ndi chubu chotolera magazi.
2) Pambuyo pa kulera, chonde gwiritsani ntchito mankhwalawa tsiku lisanafike.
3) Ndi chinthu chimodzi chokha.Musachigwiritse ntchito kachiwiri.
4) Pa thanzi lanu, musagwiritse ntchito lancet yamagazi ndi munthu wina.