1. Principles and Therapeutic Effects
- Regulate qi and blood circulation: Gua Sha delivers gentle stimulation to the skin and muscles. It dilates local capillaries, accelerates blood flow and removes metabolic waste, effectively relieving muscle stiffness and soreness.
- Stimulate meridian qi: Scraping along the pathways of meridians helps regulate the function of corresponding internal organs and restore physical balance. Most people feel relaxed and refreshed after the treatment.
- Expel external pathogenic factors: For early cold, heatstroke and similar conditions, scraping the nape and back areas helps dispel pathogenic wind, cold, summer-heat and dampness invading the body.
2. Common Indications
- Musculoskeletal discomfort: It works well for neck and shoulder tightness, lumbodorsal soreness and fatigue-induced muscle tension, and alleviates discomfort rapidly.
- Mild onset of exogenous diseases: When you have early cold symptoms such as chills, heavy head and nasal congestion, scraping Dazhui (GV14) and the Bladder Meridian on the back can induce sweating and expel pathogens.
- Mild summer dampness discomfort: For dizziness, chest distress and nausea caused by summer-heat and dampness, gentle scraping on the neck and chest can relieve symptoms.
3. Operation Guidelines & Precautions
- Tools and lubrication: Smooth-edged buffalo horn boards or jade boards are commonly used. Apply proper lubricating oil or warm water on the skin before scraping to prevent friction injury.
- Pressure and sha appearance: Keep movements even and gentle, and control pressure within the patient’s tolerance. Sha (red petechiae) is caused by temporary capillary rupture and will fade naturally within several days. Do not pursue heavy sha excessively.
- Keep warm and avoid wind: Pores open during treatment. Keep windows and doors closed to prevent wind exposure. Drink warm water and dress warmly after scraping. Do not take cold showers on the same day.
- Contraindications: Gua Sha is not suitable for people with skin wounds, infections or bleeding disorders; patients in the acute stage of severe cardiovascular and cerebrovascular diseases; those who are excessively hungry, overfull or intoxicated. Avoid scraping the lumbosacral and abdominal areas of pregnant women.
Gua Sha is a practical traditional Chinese medicine health care method for home use to relieve minor discomforts, but it cannot replace professional medical treatment. Please seek medical advice promptly if symptoms recur or worsen.