What type of information should client questionnaires ask about?

The correct answer focuses on asking about medications, allergies, and skin disorders because this information is crucial for ensuring the safety and effectiveness of waxing treatments. Understanding a client's medical history helps the esthetician identify any potential risks or contraindications associated with waxing. For instance, certain medications, such as blood thinners or strong acne treatments like Accutane, can make the skin more sensitive and prone to bruising or irritation.

Allergies are also significant, as they can lead to serious reactions if the wrong products are used. Additionally, knowledge of existing skin disorders allows the esthetician to tailor treatments appropriately and avoid exacerbating any underlying conditions. This comprehensive client questionnaire ensures that the esthetician is well-informed and can provide a safe and personalized waxing experience.

Options that suggest inquiries into personal finances, previous treatments only, or diet and exercise habits do not provide the essential medical and safety-related information necessary for this type of service. While those topics may hold some relevance in other contexts, they do not directly contribute to the health and safety of a waxing procedure.