What should a hairdresser do if a client has an allergic reaction during a service?

When a client experiences an allergic reaction during a hairdressing service, the most appropriate course of action is to stop the service and provide immediate assistance. This ensures the client's safety and addresses their health needs promptly. Stopping the service allows the hairdresser to assess the situation, check for symptoms of the allergic reaction, and respond appropriately, which may include washing the affected area or applying a soothing treatment if necessary.

In addition to halting the service, the hairdresser should communicate with the client to understand the severity of the reaction and may need to contact emergency services if the reaction appears serious. The priority is the client's well-being, and acting quickly can prevent further complications.

The other options, such as applying ice, continuing with the service, or asking the client to leave, do not prioritize the client's safety effectively and may exacerbate the situation or put the client at risk. Therefore, stopping the service and providing assistance is the best and safest choice in such scenarios.