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Gua sha, cupping and IASTM are often lumped together. Christine explains how they differ, what each feels like and how you can stop at any time.

Scraping, suction and steel instruments sometimes appear together in the same article, as though they were variations on one idea. In fact, gua sha, cupping and IASTM (short for instrument-assisted soft tissue mobilisation) involve different actions and come from different clinical backgrounds.

How they differ

• Gua sha is a traditional Chinese technique of stroking or scraping the skin with a smooth-edged tool.
• Cupping uses suction to draw the skin and underlying tissue up into a cup.
• IASTM is a more recent approach, used in some manual therapy settings, with specially shaped instruments over soft tissue.

Because the methods differ, so do their risks, the sensations involved and the evidence discussed for each. Grouping them together should not suggest they are interchangeable.

Asking the right questions

If one of these techniques comes up while you are talking with Dr Christine Shen, Acupuncturist, in Freshwater, ask exactly which method she proposes and what you are likely to feel. Tell her how much pressure you usually tolerate and whether your skin has reacted to similar treatment before.

What the tool is called matters less than knowing what will be done, why, and how to call a halt if it becomes uncomfortable. Christine will agree on a signal with you before starting.

Reviewing what matters to you

Before treatment begins, settle on an ordinary activity or symptom you would like to revisit at follow-up. Afterwards, add how comfortable the session was and how your skin recovered. A mark is only one piece of information. Continuing should depend on your original reason, your response and the alternatives on offer.

One technique at a time

If you have tried one of these methods elsewhere, let Christine know what it involved and how you felt afterwards. That history helps her explain the differences clearly. Understanding the technique before it starts tends to make a Freshwater session feel calmer and more predictable.