Based on peer-reviewed literature, there are no known significant side effects from laser therapy for most conditions. Increased blood flow is a positive benefit associated with laser therapy that can cause the skin to get flush and the feeling of warmth. These changes are short-lived, typically lasting for up to a few hours. Improper dosing can lead to increased swelling for acute injuries where there is a lot of inflammation present as well as increased nerve-related pain for certain conditions when irritable nerve tissue is over stimulated. This is usually correctable by adjusting the treatment settings. On these rare occasions, the setbacks usually reverse themselves within 24-36 hours. Understanding proper dosing parameters minimizes this phenomena.
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