Relapsing Polychondritis is a disease that causes inflammation of cartilage. It can affect many parts of the body but the cartilage that is most frequently involved in this disease is that found in the outer ear, the bridge of the nose and the trachea. The inflammation in these areas is episodic and leads to redness and pain in the affected areas, and can later lead to loss of cartilage.
Although this is not relevant to Search Engine Optimization, but this text is shown in search results page, this is the first impression of your website the user sees. Therefore, it is recommended that you use this tag.