For your severe and continuous neck pain with inability to turn your head, Tolperisone 150 mg can be used as it is a muscle relaxant that helps relieve muscle stiffness and spasms. However, it is important to:

• Consult a doctor before starting Tolperisone to ensure it is appropriate for your specific condition.
• Consider underlying causes of your neck pain, such as injury, nerve issues, or other medical conditions that may require different treatments.
• Follow dosage instructions carefully and be aware of possible side effects like dizziness, sleepiness, diarrhea, sweating, abdominal pain, or weakness.
• If pain is severe, worsening, or accompanied by other symptoms like numbness, weakness, or fever, seek medical attention promptly.

In summary, while Tolperisone can help with muscle-related neck pain, proper medical evaluation is essential to ensure safe and effective treatment tailored to your needs.