What is photodermatosis?
What is photodermatosis?
Photodermatoses with known photosensitizer They are inflammatory skin reactions induced photochemically in exposed areas without an immunological basis. They manifest usually as dermatitis consistent with the symptoms of sunburn reaction.
What does PMLE look like?
Polymorphous light eruption is a rash caused by sun exposure in people who have developed sensitivity to sunlight. The rash usually appears as tiny, inflamed bumps or slightly raised patches of skin. The reaction usually happens during spring and early summer when exposure to sunlight increases.
What are the symptoms of photosensitivity?
Photosensitivity is the term used to describe sensitivity to the ultraviolet (UV) rays from sunlight and other light sources, such as indoor fluorescent light. Photosensitivity can cause rashes, fever, fatigue, joint pain, and other symptoms in people with both cutaneous (skin) and systemic lupus.
What is phytophotodermatitis caused by?
Phytophotodermatitis is most commonly caused by ingestion of or topical exposure to psoralens (furocoumarins). Psoralens have been isolated from at least 4 different plant families: Umbelliferae, Rutaceae, [9, 10] Moraceae, and Leguminosae.
What diseases can cause photosensitivity?
Examples of photoaggravated diseases include lupus erythematosus, erythema multiforme, atopic eczema, psoriasis, viral exanthemata, pemphigus, dermatitis herpetiformis and rosacea. Drugs and chemicals may interact with UV to induce photosensitivity.
What medication causes photosensitivity?
Primary Classes of Medications Responsible for Photosensitizing Reactions
- Antihistamines.
- Coal Tar and Derivatives.
- Contraceptives, Oral and Estrogens.
- Non-Steroidal Anti-Inflammatory Drugs.
- Phenothiazines.
- Psoralens.
- Sulfonamides.
- Sulfonylureas.
How do I get rid of PMLE?
Treatment of polymorphous light eruption usually isn’t needed because the rash usually goes away on its own within 10 days. If your symptoms are severe, your health care provider may prescribe anti-itch medicine (a corticosteroid cream or pill).
What disease causes photosensitivity?
How do you fix phytophotodermatitis?
Phytophotodermatitis (PPD) is a self-limited problem that resolves with removal of the offending agent. Patients should avoid the offending agent (furocoumarin). Cool wet compresses may be used for acute lesions. Topical steroids may be used if the eruption is severe and edematous.
How do you treat photosensitivity?
Prevention and Treatment
- Avoiding overexposure to sun, wear protective clothing, use sunscreens (prevention)
- For photosensitivity, stopping drugs or chemicals and sometimes taking corticosteroids.
- For solar urticaria, antihistamines, corticosteroids, or sunscreens or sometimes ultraviolet (UV) light therapy.