The combination of benzoyl peroxide and erythromycin is prescribed for acne because benzoyl peroxide:

The combination of benzoyl peroxide and erythromycin is prescribed for acne because benzoyl peroxide:

A- Improve the efficacity of erythromycin

B- Decreases the risk of desquamation

C- Decreases the risk of resistance to erythromycin

D- Increases the time patient can be exposed to sunlight"

The correct answer is:

 C- Decreases the risk of resistance to erythromycin

 Explanation: The combination is often added when treating acne with benzoyl peroxide that is employed to decrease the bacterial resistance to erythromycin. Benzoyl peroxide regularises the concentration of acne provoking bacterias on skin which helps get the best outcome from erythromycin use and minimises the bacterias’ ability to develop resistance to the antibiotic