Bloating and distention may be due to increased amounts of gas in the abdomen, but there also are other causes. Sometimes intestinal gas that is associated with bloating can be accompanied by. abdominal pain, stomach cramps, swelling of the abdomen, and/or; a feeling of knots in the stomach. REFERENCE:
1 Irritation and allergic reactions. 2  Wool, chemicals, soaps and other substances can irritate the skin and cause itching. 3  Sometimes the substance, such as poison ivy or cosmetics, causes an allergic reaction.4  Food allergies also may cause skin to itch. 5  Drugs. Sometimes the substance, such as poison ivy or cosmetics, causes an allergic reaction. 2  Food allergies also may cause skin to itch. 3  Drugs. 4  Reactions to drugs, such as antibiotics, antifungal drugs or narcotic pain medications, can cause widespread rashes and itching.
2. Burns/ Frostbite. Burns to the skin caused by hot liquids and too much sun may cause burning of the skin on the back. Frostbite is from the skin becoming too cold and freezing. This can cause burning sensations and then numbness.