Please choose the correct ending to complete the given sentence: Health: [header] How to treat heel pain with prolotherapy [title] Locate a doctor who administers prolotherapy. [step] Some medical doctors may suggest and use prolotherapy to treat your heel pain. In most cases, an osteopathic physician or surgeon will administer prolotherapy.

Ending1: [title] Talk to your doctor about the level of pain you have. [step] You should be given pain relief if you have severe heel pain. Ending2: You should not use prolotherapy if you are already on medication to help with your heel pain. [title] Talk to your doctor about side effects. Ending3: But other doctors may prescribe to you a cream or medication. [substeps] Make sure to research prolotherapy creams and follow the instructions on the box or bottle. Ending4: You may decide to complement tradition medical care with prolotherapy or to use it as your main treatment. You can find a practitioner by asking your doctor, family, or friends for recommendations.

Answer format: ending1/ending2/ending3/ending4