Doxycycline is an antibiotic in the tetracycline family that works by inhibiting bacterial growth in the body. Doctors prescribe doxycycline to fight bacterial infections, such as pneumonia, respiratory or urinary tract infections, Chlamydia, gonorrhea and other serious infections.

Amoxicillin is one of the drugs in the beta-lactam antibiotic family, according to the Mayo Clinic. It is used to treat bacterial infections.

Parasites are organisms that live on or inside another organism. Parasitic infections, then, are when an unwelcome parasite invades a host organism and damages that host. Antibiotics are medications that kill or retard the growth of parasites, usually without causing significant harm to the person taking them.

According to MedlinePlus, a toothache is generally the result of a dental cavity in which the tooth begins to decay, leading to infection. The cause is most often attributed to poor dental hygiene, although a genetic proclivity to tooth decay can also play a role.

Bronchitis is the swelling of the tubes leading to lungs and pneumonia is severe infection of lungs. Both bronchitis and pneumonia are commonly caused by bacteria or viruses and are characterized by a fever, headaches, a cough with thick mucus, difficulty in breathing and pain in the chest.

Penicillin is an antibiotic used to treat systemic (throughout the body) infections. Many people experience allergic reactions to penicillin. Billie Ann Wilson, Ph.D., Margaret Shannon, Ph.D., and Kelly Shields Pharm.D.

When you or your child scratch an eye, it can be a frightening situation. Whether it is due to a fingernail, piece of dirt, contact lens or paper cut, having a scratch in such a tender area can get you rattled.

If you are taking supplemental lysine and suffer an infection that requires antibiotics, be sure to inform your doctor about your supplement use before starting your medication; using lysine and certain antibiotics can be dangerous. Both lysine and antibiotics also may cause side effects. The U.S.

Penicillin was the first antibiotic developed by Alexander Fleming in the early part of the 20th century. It wasn’t until Ernst Chain and Howard Florey made improvements to it that it became a world standard for killing disease-causing bacteria in World War II.

Fucidin is a cream form of fusidic acid, an antimicrobial antibiotic that was first used as a topical drug in the 1940s, according to the Acne Guide. Originally, fucidin was used to treat all kinds of bacterial skin infections, burns and infections in wounds.

Diarrhea, vomiting and stomach upset are common side effects of taking antibiotics. These symptoms usually disappear by themselves a few days after stopping antibiotics.

A puncture wound occurs when a sharp object penetrates the skin barrier. Nails are the culprit in 90 percent of puncture wounds, most often on the bottom of the foot, according to FamilyPracticeNotebook.com.