- Adult Skin Problems Slideshow
- Quiz: Is Ringworm Contagious?
- Gallery of Skin Problems Pictures
- Patient Comments: Sun-Sensitive Drugs - Phototoxic Drugs
- Patient Comments: Sun-Sensitive Drugs - Symptoms
- Patient Comments: Sun-Sensitive Drugs - Treatment
- Patient Comments: Sun-Sensitive Drugs - Foods and Plants
- Sun-sensitizing drugs (photosensitivity) facts
- What is photosensitivity?
- What is the difference between a photoallergic and a phototoxic reaction?
- What is ultraviolet light?
- Photoallergic and phototoxic reaction pictures
- What are the symptoms of sun sensitivity (photosensitivity)?
- Phototoxic drugs
- Photoallergic drugs
- Are there any medical conditions that may cause photosensitivity?
- How is sun sensitivity (photosensitivity) diagnosed?
- What is the treatment for a photosensitizing drug reaction?
- Is anyone taking these drugs at risk for developing sunburn?
- Can any foods or plants cause sun sensitivity (photosensitivity) reactions?
- Pictures of food and plant sun-sensitivity (photosensitivity) reactions
- Are there any medical applications of sun sensitivity (photosensitivity)?
What is ultraviolet light?
Ultraviolet (UV) light is radiation energy in the form of invisible light waves. UV light is emitted by the sun and by tanning lamps.
The sun discharges three types of ultraviolet radiation:
- ultraviolet A (UVA)
- ultraviolet B (UVB)
- ultraviolet C (UVC)
Only UVA and UVB rays reach earth. (UVC does not penetrate the earth's upper atmosphere.)
Tanning lamps also produce UVA and/or UVB. These artificial rays affect the skin in the same way as do UVA and UVB from the sun.