Acid Reflux is the backward flow of stomach acid into the tube that connects your throat to your stomach (oesophagus). During an episode of acid reflux, you might feel a burning sensation in your chest (heartburn). It is also known as gastroesophageal reflux (GER) and in this case, you should always consult your doctor. Studies show that practicing yoga in conjunction with medications can be helpful in controlling and/or alleviation of symptoms related to digestive diseases. Kapalbhati and Agnisar kriya may be particularly useful in addressing GERD as they can increase diaphragmatic tone, thus decreasing reflux from the stomach to esophagus. So, you may use these yogic exercises if they are comfortable to you. You should listen to your body during practice. You should be empty stomach during the practice. Alongwith, you should also change your lifestyle appropriate to the treatment of GERD/acid reflux and foods. Shatkarmas, like Kunjal /vastra dhauti can also help if done under the guidance of qualified yoga therapist.