chinchex insecticide was really helpful. it is cheap and so effective! Save me heaps of money from finding pest control company. it is also very easy to use, apply on furnitures and every corner in the house, i can tell the difference within 2 weeks time. my mum was worried and no idea how to deal with those powder, I even found tutorial videos from Chinchex online! they really do care about their customers, Im still using it for killing cockroaches and ants.