While red light therapy is a safe treatment, certain groups of people may need to avoid or use caution with the treatment. These groups include:   • Pregnant women - As the safety of red light therapy during pregnancy is still being researched, pregnant women are advised to avoid the treatment. • People with a history of skin cancer - While red light therapy is not cancer-causing, those with a history of skin cancer should inform the practitioner during the consultation. • People with photosensitivity - Red light therapy can trigger photosensitivity in some. Prior to starting treatment, you should inform your healthcare provider if you have a history of photosensitivity. • People taking photosensitizing medications - Certain medications can make the skin more sensitive to light, which can increase the risk of a skin reaction from the treatment. It is important to inform your healthcare provider of the medications you are currently taking at the time of your appointment.