Ticks extermination

The tatami mats were infested with many ticks, because I closed the all the windows of my house when I went out.
If I sat down on the tatami mat, I was be bitten my hand and leg by ticks.
I could not stand the itching.
I went to the drugstore to buy an insecticide immediately.
When I pricked the tatami mat with the needle of the hose and push the button, insecticides were injected in the tatami mat.
I got possible to stretch out for a nap on the tatami mat without worrying.

An insecticide to exterminate　the ticks