The purpose of an antihistamine is to work against the effects of histamine, a chemical substance found in nearly all body tissues. Histamine is released in response to injury or invasion by foreign substances such as pollens (see allergy). It is also the irritating agent in certain insect venoms.
Metronidazole for a Strep B Infection. Group B Strep is a strain of the streptococcus bacteria that can cause serious illness and is potentially life threatening, especially in newborns, pregnant women, elderly patients, or anyone with any already compromised immune system.
They can also do a rapid strep test or throat culture to test for the presence of the strep bacteria. Once your doctor has confirmed that you have strep throat, an antibiotic like penicillin or amoxicillin will be prescribed. The antibiotics reduce the amount of time that you are contagious and help prevent the spread of the infection to other parts of your body.