What should be done if a client has an adverse reaction during a treatment?

When a client experiences an adverse reaction during a treatment, the best course of action is to discontinue the service and seek medical assistance if necessary. This response prioritizes the safety and well-being of the client, ensuring that any potential health issues are addressed promptly. Discontinuing the service allows the cosmetologist to assess the situation and take appropriate measures, such as providing first aid or calling for medical help if the client's condition warrants it.

Continuing the service despite a reaction could exacerbate the situation, leading to more severe health complications. Changing products immediately might not be effective in managing the reaction, as the client may have already developed sensitivity or an allergy to the product used during the treatment. Offering a discount, while a kind gesture, does not address the immediate health concerns and fails to ensure the client receives the necessary care. Therefore, prioritizing the client’s health by halting the treatment and seeking medical attention is the most responsible and appropriate action.