Chemical Photosensitivity
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| Perfume, colognes, deodorant, and cosmetics are some of the common items that cause photosensitivity |
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Some chemicals can increase the sensitivity of human bodies to sunlight and other types of ultraviolet light, causing a variety of health problems known as photosensitivity disorders. These chemicals, called photo-reactive agents, are present in some medications, food additives and common household products. |
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Photoreactive agents can cause both acute and chronic effects. |
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Acute effects from short-term exposure inlcude: |
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- Exaggerated sunburn-like skin conditions
- Eye burn and mild allergic reactions
- Hives and abnormal reddening of the skin
- eczema-like rashes with itching, swelling, blistering, oozing, and scaling of the skin
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Chronic effects from long-term exposure include : |
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- Premature skin aging
- Stronger allergic reactions
- Cataracts, and blood vessel damage
- A weakened immune system, and skin cancer
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| Examples of products that cause chemical photosensitivity |
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| 1. Medications |
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Common medications containing photoreactive agents include: |
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- Antihistamines used in cold and allergy medicines
- Non-steroidal anti-inflammatory drugs (NSAIDs) used to control pain and inflammation in arthritis
- Antibiotics, including the tetracyclines and the sulfonamides (or “sulfa" drugs)
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Medications that induce photophobia (fear of light) include: |
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- Several drugs prescribed for irregular heartbeat, such as Crystodigin (digitoxin) and Duraquin (quinidine)
- Several drugs for diabetes, such as Tolinase (tolazamide) and Orinase (tolbutamide)
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In phototoxic reactions, the drug absorbs energy from UV light and releases the energy into the skin, causing skin cell damage or death. Frequently prescribed medications that cause phototoxic reactions include: |
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- Tetracycline antibiotics
- Over-the-counter NSAID pain relievers Advil, Nuprin and Motrin (ibuprofen), and Aleve (naproxen sodium)
- Cordarone (amiodarone) used to control irregular heart beats
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| 2. Food additives |
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| 3. Common household products |
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Some common household products with photoreactive agents include: |
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- Deodorants, colognes, perfumes
- Antibacterial soaps, hair dyes, hair styling creams
- Artificial sweeteners, oral contraceptives
- Fluorescent brightening agents for cellulose, nylon and wool fibers
- Varnishes, shoe polish, vulcanized rubber, naphthalene (moth balls), petroleum products
- In cadmium sulfide (a chemical injected into the skin during tattooing)
- Cosmetics that contain musk ambrette, sandalwood oil, and bergamot oil
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