1 Habitat fragmentation: Much of the remaining terrestrial wildlife habitat in the U.S. has been cut up into fragments by roads and development. 2  Aquatic speciesâ habitat has been fragmented by dams and water diversions.
As for simple antibiotics, they too kill bacteria in the beginning. But in the long run theyâre even worse, because the p.acnes bacteria is becoming resistant to them. The most common antibiotics used by acne patients over the last 30 years are erythromycin, tetracycline, doxycycline, and minocycline. Like any antibiotic they are specially targeted to kill bacteria and originally they killed p.acnes wellâ¦.
Updated February 27, 2017. Antibiotics are frequently used to treat acne since they help decrease the number of bacteria in and around the pilosebaceous unit, consisting of a hair follicle, sebaceous gland, and a hair. Acne is caused by the effects of hormones on this unit.