8. Allergic Reactions or Hives

Sudden bumps, swelling, or hives after using a new product are classic signs of an allergic reaction, often caused by preservatives or artificial fragrances. Performing a small spot-test before full application can help prevent severe responses and discomfort. Hypoallergenic skincare lines usually minimize risk, unlike heavily scented or complex formulas. If you suspect an allergy, discontinue use immediately and consult a professional. For more on allergic reactions and prevention, visit the National Eczema Association.