How do I erase comments once i made on facebook?

[Fifo]

i mean if i commented on some singer pic or friend pic is there a way to remove all comments i done
i mean that i done a week ago,,i posted them already

[Kevin]

If your using a phone just put your finger on the comment and slide to the left and it will say delete

[John FP]

move your mouse pointer to that comment section go directly on top and right corner it will show delete or hide comment.