Which antibiotic-related statement about sun exposure is accurate?

• A. All antibiotics cause photosensitivity and you should avoid sun.
• B. Photosensitivity never occurs with antibiotics.
• C. Sun exposure has no effect on antibiotic action.
• D. Photosensitivity can occur with certain antibiotics; take precautions when outdoors.

Answer: (D)

Certain antibiotics can make the skin more sensitive to sunlight. This photosensitivity means that when you’re in the sun, UV light can interact with the drug in the skin and cause a phototoxic reaction—think sunburn-like redness, swelling, or a rash on areas exposed to sunlight. This isn’t universal for all antibiotics; some drugs carry this risk, while others do not. It’s not about the antibiotic’s ability to fight the infection changing with sun exposure, but about the skin’s reaction to light while the drug is in your system. So the accurate statement is that photosensitivity can occur with certain antibiotics, and you should take precautions when outdoors—wear protective clothing, use sunscreen, and avoid intense sun, especially during treatment. If you notice a severe rash or blistering, seek medical advice promptly.