Detailed answer

A skin rash can indeed be a sign of an allergic reaction to jewelry. Certain metals like nickel, cobalt, and chromium commonly found in jewelry can cause dermatitis or an allergic response in sensitive individuals. The rash may appear as redness, itching, swelling, or blistering and often occurs in areas where the jewelry comes into contact with the skin. If you suspect an allergic reaction to jewelry, it is advised to avoid wearing the specific piece and consult a dermatologist for proper diagnosis and treatment.