How does Doxycycline work?
Doxycycline works by stopping the production of protein that the bacteria needs to survive. Without being able to produce the protein, the bacteria cannot perform essential functions such as growth and repair. This causes them to eventually stop growing and die. In treating acne, Doxycycline is thought to slow the production of the bacteria, Propionibacterium acnes. This bacteria is believed to be important in the formation of acne. Doxycycline may also work to treat acne by controlling inflammatory reactions in the body. Although different people respond to medications at different rates, acne should respond to Doxycycline by 6 weeks. The normal time frame for acne to respond to doxycycline is 3 to 6 weeks. In some patients, acne may get worse before it gets better.