What should a cosmetologist do if a client has a history of allergies?

A cosmetologist should conduct a thorough consultation and patch test if a client has a history of allergies. This process is crucial for ensuring the safety and well-being of the client. A consultation allows the cosmetologist to gather detailed information about the client's allergies, including their severity, and to understand which specific products or ingredients should be avoided.

Performing a patch test involves applying a small amount of the product on a discreet area of the client's skin and monitoring for any adverse reactions. This step is vital because it helps to determine if the client can safely use a particular product before proceeding with a full treatment. By taking these precautions, the cosmetologist can minimize the risk of allergic reactions, which enhances client trust and satisfaction and ensures compliance with safety practices in the salon environment.