Rash symptom is a term used to describe any type of skin irritation or inflammation that is accompanied by an itchy sensation. ITCH, which is the most common rash symptom, is a four-letter word that is caused by a variety of factors, including allergies, infections, and environmental irritants. Other common rash symptoms include redness, swelling, and bumps on the skin. In some cases, rash symptoms can be accompanied by fever, chills, and fatigue. Treatment for rash symptoms depends on the underlying cause and may include topical creams, oral medications, or lifestyle changes.