Massage & Bodywork Licensing Practice Examination (MBLEx)

The best course of action is to refer the client for emergency care due to the concerning symptoms presented. The combination of redness, heat, swelling, and pain, especially with a lesion at the center, suggests a possible infection or another serious condition that requires immediate medical evaluation. The worsening nature of the symptoms indicates that this is not a self-limiting issue and could pose further risks if not addressed promptly by a healthcare professional.

Postponing the session until the condition improves on its own does not consider the potential seriousness of the situation. Similarly, continuing the session while avoiding treatment of the affected leg or utilizing cryotherapy may further exacerbate the client's condition and delay necessary treatment. Therefore, referring the client for emergency care is the most appropriate and responsible action. This ensures the client receives the necessary medical assessment and treatment without further complications from a massage session.