I want you to look at vs.11 where it states: “They have treated the wound of my people carelessly, saying, “peace, peace,” when there is no peace.” The leaders of the day of Jeremiah promoted false optimism in a time of national crisis. They pretended that everything around them was fine while people were dying and taken off into captivity. The more things change in history, the more they stay the same. This same concept is brought up in chapter 6:14 where we see the leaders of the land pretending that everything is fine while society was crumbling around them. God does not look with favor upon the leaders when that happens.
The people do not see a solution, in fact in vs.15 this is what they say: “We look for peace, but find no good, for a time of healing, but there is terror instead.” We then hear the words of the famous hymn: “Is there no balm in Gilead?” That is a rhetorical question which is answered, no, and the Lord has abandoned His people because of their sin.