This condition is considered to be a possible occurrence of herpes zoster, or costochondritis. The location of the rib cage below the left breast is also a typical painful site for patients with cardiac neuropathy, as well as patients with coronary artery disease, angina pectoris, and inadequate blood supply to the heart muscle. The first step is to do an examination, which can start with an electrocardiogram, cardiac ultrasound and a preliminary screening of the chest X-ray. Generally speaking, if it is costochondritis, it is possible that the symptoms will be relieved spontaneously by rubbing and pressing. If it is costochondritis, then fotarine ointment can be applied to the area of discomfort. Patients with cardiac neuropathy, on the other hand, often experience spontaneous relief of pain symptoms by distracting themselves during painful episodes, or by doing household chores instead. Patients with coronary artery disease and angina pectoris can experience gradual relief if they take nitroglycerin under the tongue during the onset of symptoms. Patients with herpes zoster often have pain that is not typical, and the pain can be gradually reduced only after the onset of herpes.