Photodermatitis
Page Module:Message box/ambox.css has no content.
 | This article needs additional citations for verification. (July 2022) |
Template:Short descriptionPage Module:Infobox/styles.css has no content.
| Sun poisoning | |
|---|---|
| Other names | Sun poisoning, photoallergy |
| Lua error in package.lua at line 80: module 'Module:InfoboxImage/data' not found. | |
| A case of photodermatitis as a result of lemons | |
| Specialty | Lua error in package.lua at line 80: module 'Module:GetParameters' not found. |
| Frequency | Lua error in Module:PrevalenceData at line 5: attempt to index field 'wikibase' (a nil value). |
Page Template:Infobox/styles-images.css has no content.Script error: No such module "Check for conflicting parameters".
Photodermatitis, sometimes referred to as sun poisoning or photoallergy, is a form of allergic dermatitis in which the allergen is activated by light to sensitize the allergic response, and to cause a rash or other systemic effects on subsequent exposure. The second and subsequent exposures produce photoallergic skin conditions which are often eczematous. It is distinct from sunburn.
Some variants are caused by topical exposure, while others are caused by medications, and still others are caused by medical conditions which generate the allergen precursors in the body.
Signs and symptoms
Photodermatitis may result in swelling, difficulty breathing, a burning sensation, a red itchy rash sometimes resembling small blisters, and peeling of the skin. Nausea may also occur. There may also be blotches where the itching may persist for long periods of time. In these areas an unsightly orange to brown tint may form, usually near or on the face.
Causes
Many medications and conditions can cause sun sensitivity, including:
- Sulfa used in some drugs, among them some antibiotics, diuretics, COX-2 inhibitors, and diabetes drugs.[1]
- Psoralens, coal tars, photo-active dyes (eosin, acridine orange).
- Musk ambrette, methylcoumarin, lemon oil (may be present in fragrances).
- PABA (found in sunscreens).
- Oxybenzone (UVA and UVB chemical blocker also in sunscreens).[2]
- Salicylanilide (found in industrial cleaners).
- St John's wort.
- Hexachlorophene (found in some prescription antibacterial soaps).
- Tetracycline antibiotics (e.g., tetracycline, doxycycline, minocycline).
- Benzoyl peroxide.
- Retinoids (e.g., isotretinoin).
- Some NSAIDs (e.g., ibuprofen, naproxen sodium).
- Fluoroquinolone antibiotic: Sparfloxacin in 2% of cases.
- Amiodarone, used to treat atrial fibrillation.
Non-medication conditions that can cause it include:
- Porphyria
- Lupus
- Pellagra (Vitamin B3 deficiency)[3]
Photodermatitis can also be caused by plants such as Ammi majus, parsnip, giant hogweed (Heracleum mantegazzianum), common rue (Ruta graveolens), and Dictamnus, a genus of flowering plants in the family Rutaceae with a single species Dictamnus albus, commonly called the burning bush. Photodermatitis caused by plants is called phytophotodermatitis.
Prevention
Prevention includes avoiding exposure to chemicals that can trigger the reaction, such as by wearing gloves, or avoiding sunlight or wearing sunscreen[4][5] preferably with at least factor 30 and with a high UVA protection level on the affected area. And by addressing any risk factors, such as those listed above.
See also
References
Page Template:Reflist/styles.css has no content.
- ^ Page Module:Citation/CS1/styles.css has no content."Sulfa Allergy Symptoms and Risks". Archived from the original on 2014-04-14. Retrieved 2013-10-07.
- ^ Rodriguez E, Valbuena MC, Rey M, Porras de Quintana L. 2006. Causal agents of photoallergic contact dermatitis diagnosed in the national institute of dermatology of Colombia. Photodermatol Photoimmunol Photomed 22(4): 189-192.
- ^ Page Module:Citation/CS1/styles.css has no content."Photosensitive dermatitis: Causes, symptoms, and treatments". www.medicalnewstoday.com. 2021-08-19. Retrieved 2025-07-26.
- ^ Archived AAD - The Sun and Your Skin, "Allergic Reactions" section
- ^ Page Module:Citation/CS1/styles.css has no content."AAD - Sunscreens". Archived from the original on 2014-07-21. Retrieved 2011-04-26.
External links
Template:Medical resources Lua error in package.lua at line 80: module 'Module:Navbox/configuration' not found. Lua error in package.lua at line 80: module 'Module:Authority control/config' not found.
