Possessive Nouns. Possessive nouns are used to indicate ownership. Possessive nouns usually are formed by adding an apostrophe (') and s. When a noun is plural and ends in s, just add an apostrophe ('). If two people own one thing, add the apostrophe and s to the second person only. If two people own separate things, add the apostrophe and s for each person.
Types of antibiotics. There are hundreds of different types of antibiotics, but most of them can be broadly classified into six groups. These are outlined below. Penicillins (such as penicillin and amoxicillin) â widely used to treat a variety of infections, including skin infections, chest infections and urinary tract infections.
Medically Reviewed by Dr Rob Hicks. Antibiotics are some of the most frequently prescribed medicines. They work by killing bacteria or preventing bacteria from multiplying and spreading. Antibiotics can be used to treat potentially life-threatening conditions such as pneumonia or other conditions such as acne. Although antibiotics are useful in a wide variety of infections, it's important to understand that antibiotics only treat bacterial infections. Antibiotics are useless against viral infections such as the common cold, or fungal infections such as ringworm.