Detailed answer

Certain cosmetics contain ingredients that have the potential to cause skin irritation or allergic reactions, leading to a rash. Common irritants include fragrances, preservatives, dyes, and certain chemicals. Individuals with sensitive skin are more susceptible to developing a rash from cosmetics. It is important to patch test new products and discontinue use if any signs of irritation occur. Consulting a dermatologist can help determine the specific allergen or irritant causing the rash and recommend appropriate skincare alternatives.