Conclusion: Although small, this study parallels prior studies in concluding that true delayed type IV hypersensitivity (allergic contact dermatitis and photoallergy) to sunscreens is more ...

Its chemical nature may also increase photosensitivity in ... among the most common causes of contact dermatitis. Sensitive skin types should avoid sunscreens that list this ingredient.

Applying a sunscreen may ... been associated with photosensitivity, she says. "The exact reaction to sunlight exposure depends on the drug being used," she says. "With some medications, sunlight ...

The American College of Rheumatology (ACR) loosely defines photosensitivity as "a skin rash as a result of unusual reaction to sunlight." Beyond skin rashes that can develop, exposure to the sun can ...