Gua sha involves scraping the skin with a tool to stimulate microcirculation and detoxification. First-time use requires special attention to minimize risks and observe reactions.
Before Treatment
Clean skin thoroughly to remove oils or impurities. Avoid treatment on inflamed, broken, or sensitive areas. Skin should be dry and at rest; hydration helps prevent excessive reactions.
During First Treatment
The practitioner applies oil for lubrication, then scrapes firmly along meridians. On first use, friction causes capillaries to rupture, leading to erythema (redness) and petechiae (red dots).

Immediate After Effects
Post-treatment, expect pronounced erythema and localized petechiae (sha marks), indicating blood stagnation release. This resolves in 1-3 days. Skin may feel tender, warm, or swollen, a normal inflammatory response.
Common Reactions
- Temporary redness: Due to increased blood flow, fading quickly.
- Mild bruising: From burst capillaries, especially in debut users.
- Sensitivity: Heightened feeling post-first session.
Post-Treatment Care
Apply a cool compress to soothe inflammation. Hydrate skin with aloe vera or gentle moisturizers. Avoid sun exposure, harsh products, or touching the area for 24 hours to prevent irritation.