Typically, a stiff neck shouldn’t persist beyond two weeks and should show signs of improvement within the first 24 hours. Home remedies like hot or cold compresses, over-the-counter pain relievers (NSAIDs), neck exercises, gentle stretches, adequate rest, and quality sleep are essential to recovery. If the discomfort persists or you encounter additional symptoms like weakness, numbness, tingling, swelling, or fever, promptly seek medical attention.