Several factors can cause rashes, including:
•Direct contact with allergens or irritants (contact dermatitis)
•Environmental triggers or genetics (eczema)
•Poor circulation due to a sedentary lifestyle (stasis dermatitis)
•High levels of stress
•Hormonal changes
•Irritating substances
•Insect bites or stings
•Harsh soaps and skincare products
Medical conditions can also contribute to rashes, such as:
•Lupus erythematosus (an immune system disease)
•Rheumatoid arthritis, especially the juvenile type
•Kawasaki disease (inflammation of the blood vessels)
•Body-wide (systemic) viral, bacterial or fungal infections
•Childhood illnesses, including fifth disease, scarlet fever, and chickenpox
•Chronic skin conditions, such as rosacea or psoriasis