Following are a number of back-translations as well as a sample translation for translators of Jeremiah 30:13:

• Kupsabiny: “There is no one to speak your case,
  nor a medicine for your wounds
  and you are not treatable.” (Source: Kupsabiny Back Translation)
• Hiligaynon: “The LORD still said to his people: ‘Your wounds will- no-longer -be-healed for this is now very serious. There is none who can help or heal you (plur.). There is none medicine for you (plur.).” (Source: Hiligaynon Back Translation)
• English: “There is no one to help you,
  no one to put a bandage on your wound.
  There is no medicine that will heal you.” (Source: Translation for Translators)