Photodermatosis disorders diagnosis and treatment

Photodermatoses refer to adverse reaction todeclines over the next 3 to 5 days. The residual
nonionizing radiation. Photosensitive disorders maytan persits for a few weeks. The intense reaction
be considereda s; Direct disorders that denotesresembles the mild reaction at the onset.
those reactions that follow an over exposure orDiagnosis It is made on the basis of history of
chronic exposure to sun light alone, Indirectexposure to sunlight, and clinical features. It may
disorders that denote reactions that requirebe supplemented by histopathological examination
participation of endogenous/ exogenous photothat reveals the following; (1) sunburn cells that
sensitizers in addition to sunlight.are the altered epidermal cells characterized by
Direct disordersthe homogenous eosinophilic cytoplsm and
1. Immediatepycnotic nuclei, (2) moderate vascular dilataion,
2. Sunburnand (3) mild perivascular mononuclear and
3. Delayedpolymorphonuclear infiltrate.
4. Premature aging/ photoaging/ dermatoheliosisTreatment
5. Premalignancy1. Avoidance of outdoor exposure during hours of
6. Malignancyintense sunlight ( 10 AM to 3 PM) and wearing of
Indirect Disordersprotective clothing
1. 1. Exogenous/ endogenous photosensitizers2. Application of topical sunscreens
2. Phototoxic reactions3. Physical sunscreens like titanium dioxide, talc,
3. Photoallergic reactionszinc oxide, kaolin, ferric chloride, and icthammol
4. 2. Metabolic and biochemical disorders4. Para-aminobenzoic acid (PABA) and its
5. Porphyriaesterslike glyceryl PABA, amyldimethyl PABA, and
6. Aminoaciduriaoctyldimethyl PABA
7. Hartnup's disease5. Bezophenones such as oxybenzone and
8. Phenylketonuriadioxybenzone
9. Pellagra6. Cinnamates such as ethylhexyl-para-methoxy
10. 3. Idiopathic/ immunologicalcinnamate
11. Polymorphic light reaction7. Butylmethoxylibenzoyl methane (parsol)
12. Actinic prurigo8. Systemic sunscreens 250 mg of chloroquine
13. Juvenile spring eruption(equivalent to 150 mg of active base) (Resochin,
14. Solar urticariaMelubrin) thrice a day during the first week, twice
15. Hydroa vacciniformea day during second week and once daily during
16. Actinic reticuloidthe third week.
17. 4. GeneticUnani  treatment create a solution of 20 drops
18. Xeroderma pigmentosumof lavender and chamomile essential oil. This
19. Bloom's syndromesolution will help cool the affected area and reduce
20. Cockayne's syndromethe itching as well. A warm shower will help
21. Rothmund-Thomson's syndromeincrease the circulation in the affected areas of
22. 5. Diseases aggravated/ precipated by sunlightskin and also help exfoliation and removal of the
23. Lupus erythematoidesdead skin cells, allowing newer skin cells to grow in
24. Pemphigus erythematoidesits place. You can also create a mixture consisting
25. Lichen planus actinicusof milk with grated cucumber and apply this over
26. Rosaceathe affected area. Aloe vera  have also had a
27. Herpes simplextremendous effect on skin disorders
28. Lymphogranuloma venereumincluding treatment of photo dermatitis. If you
29. Varicellahave extensive sun burns, apply raw onions over
Sunburn It results from a single overexposure tothe affected areas for abundant relief from the
sunlight/ UVB emitted from an artificial source.pain. It is very important to take good care of
The severity may range from mild asymptomaticyour skin. Avoid going into the sun without
redness to an intense erythema, accompanied bysunscreen as it will act as a block from the
tenderness, pain, edema, and vesiculation. Mildharmful ultra violet rays. You should also avoid
reactions begins 6 to 12 hours after exposure andventuring into the sun between 9 a.m. and 2 p.m.
reaches maximum intensity within 24 hours. Itas this is when the suns rays are most harmful.