What is a common sign of an allergic reaction to nail products?

A common sign of an allergic reaction to nail products is redness and swelling. These symptoms occur as part of the body's immune response when it encounters a substance it identifies as harmful. The skin may become inflamed and sensitive in areas where the product was applied, indicating a reaction to ingredients in the nail products such as resins, fragrances, or preservatives.

Redness and swelling are direct responses to inflammation and increased blood flow to the affected area, which are typical indicators of an allergic reaction. The body does this to fight off allergens and promote healing.

While brittle nails, dry skin, and numbness can also be related to nail care and product use, they are not specific indicators of an allergic reaction. Brittle nails may result from overexposure to products or environmental factors, dry skin can indicate dehydration or irritation without necessarily being allergic, and numbness may arise from other health issues unrelated to an allergic response.