What should a technician do if a client has a known allergy to a product used in nail services?

When a client has a known allergy to a product used in nail services, the best course of action is to avoid using the product altogether. This decision prioritizes the client's safety and well-being. Allergies can lead to severe reactions, including irritations, rashes, or even more serious health issues if exposure to the allergen occurs.

By avoiding the product, the technician demonstrates professionalism and care for the client's health, while also adhering to the ethical standards of the nail care industry. It is crucial for technicians to be aware of their clients' allergies and to respect their individual needs. This approach not only protects the client but also helps in building trust and ensuring a positive salon experience.