The reason this happens is that salt is hygroscopic. Hygroscopic means that salt absorbs water vapor from the surrounding air. Eventually, the salt attracts enough water vapor that the gas changes into liquid, and the salt partially dissolves and starts to clump together. To combat this tendency, manufacturers put additives in salt that keep it from liquefying.
Itchy Red Bumps on Chest and Back bumps on the back. Bumps are common on any part of the body. They could appear as a result of an allergic reaction, a disease or skin disorder. These may be caused by bacterial, viral or fungal infections. Some of these bumps may be localized on a certain part of the body or spread all over. Itchy red bumps on chest and back are common.
A chest lump is a protuberance or localized area of swelling on the chest. Other terms used to describe the various types of chest lumps include bump, nodule, contusion, tumor and cyst. Chest lumps can involve the chest wall skin or be situated deeper below. Chest lumps can be caused by any number of conditions, including infections, inflammation, tumors or trauma. Depending on the cause, chest lumps may be single or multiple, soft or firm, painful or painless. They may grow rapidly or may not change in size.