The placebo effect means painkillers may work better with side effects

The placebo effect occurs if a person experiences a medical benefit from the belief that they have had a health treatment

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Drug side effects may not always be a bad thing, for painkillers at least. An inert nasal spray that was presented as having painkilling properties was deemed more effective when it caused a mild burning sensation, suggesting that this boosted the placebo effect.

The placebo effect is when people experience a medical benefit from the belief that they have had some kind of healthcare intervention, even when they haven’t…