When should light therapy be avoided?

Published: November 21, 2025
Updated: November 21, 2025

*Light therapy contraindications* require you to fully disclose your current health status before commencing treatment. There are certain circumstances which you absolutely should avoid, as doing so could cause serious problems thereafter. Be aware of these contraindications, to protect yourself should you be exposed to light. Always trust the advice of your doctors, than try to self-treat:

Photosensitizing medications can increase the risks of light therapy significantly. Drugs such as lithium, certain antibiotics, and anti-depressants can appreciably increase the sensitivity of your skin to light, so that exposure can cause burns or rashes even through a filtered ultraviolet lamp. Make sure your doctor is aware of all medications you are taking before undergoing any light treatment.

Eye conditions: Issues like glaucoma or retinal disorders may be aggravated by light exposure. An ophthalmologist should advise on necessary precautions before treatment is initiated.

Light Therapy Avoidance Conditions
ConditionPhotosensitizing MedicationsRisk Level
High
Recommended ActionDiscontinue therapy or switch medications
ConditionGlaucoma/Retinal DisordersRisk Level
High
Recommended ActionOphthalmologist consultation required
ConditionBipolar Manic PhaseRisk Level
Critical
Recommended ActionTherapy contraindicated during episodes
ConditionPregnancyRisk Level
Medium
Recommended ActionMedical approval required before use
ConditionLupus/PorphyriaRisk Level
High
Recommended ActionComplete avoidance recommended

Medication Interactions

  • Ask doctors about non-photosensitizing alternatives
  • Consider cognitive behavioral therapy instead
  • Delay light treatment until medication course completes

Eye Condition Management

  • Use audio-based therapies for mood regulation
  • Try vitamin D supplements under medical supervision
  • Implement sleep hygiene practices without light exposure

Pregnancy Precautions

  • Opt for morning sunlight exposure instead
  • Use dawn simulators with medical approval
  • Focus on nutrition and gentle exercise routines

Bipolar Disorder: This requires particular care as light exposure can provoke or exacerbate manic episodes significantly. Work with your psychiatrist to establish a plan for stable mood episodes that might be amenable to treatment. Do not use light therapy without professional mental health oversight.

Pregnancy: Avoid any light treatment without consulting your obstetrician. The state of pregnancy involves increased hormone activity and photosensitising properties. Obtain the approval of the obstetrician well before using the devices. Controlled exposure to the sun might be a safer alternative. Consider the health of both mother and child before any treatment.

Read the full article: Light Therapy: Benefits, Types, and Uses

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