How should a cosmetologist respond if a client has an allergic reaction to a product?

When a cosmetologist encounters a situation where a client has an allergic reaction to a product, the appropriate response is to stop the service immediately and seek medical help if necessary. This approach is vital to ensure the client's safety and health.

Stopping the service allows for immediate action to address the reaction without further exposure to the allergen, which could exacerbate the situation. It is crucial to assess the severity of the reaction; if it is severe or if the client experiences difficulty breathing, swelling, or other alarming symptoms, seeking medical assistance promptly is essential.

Continuing the service and merely monitoring the client could lead to a worsening of the allergic reaction. Applying ice or offering antihistamines may not be effective in addressing the immediate medical needs of the client and could also lead to complications without proper guidance from a healthcare professional. Therefore, halting the procedure and prioritizing the client's health by ensuring they receive the necessary medical attention is the most responsible and professional course of action.