1: put one paper on the ground where cockcroach always appear
2:open the bag,take out the medcine,put it on the paper
3:wash your hand after take it .and better not let your elder or childer to touch it .
4:after the cockcroach died on the paper,take it together with paper to rabbish case.
5:away from the trouble of cockkroach forever ,lead a better and quite life!!