Sensitive skin has come to mean people who have allergic or irritant reactions to products mostly, but can also mean sometimes people who develop rashes in response to external environmental things such as plants or foods. 
 Many people are affected by the redness, dry skin, acne, sunburn, hives and other bumps and blemishes caused by sensitive skin. The exact cause of the condition itself may vary, as some attribute certain symptoms to genetics, while others blame food, cosmetics and other environmental factors. Treating sensitive skin will depend on which symptoms are present, and may also be influenced by the cause of symptoms.