The word antibiotic means a drug that kills germs in your body and is technically a bacterial killer or anti-bacterial.
The question arises; What are antibiotics used to treat? or What diseases do antibiotics treat?
Antibiotics are used only against infective diseases like malaria, typhoid and diseases like diabetes mellitus, cancer- all types and forms, arthritis, all forms of mental illness, viral diseases, obesity, hypertension, etc. are not treated using them.
There are multiple other diseases like endocrine disorders like hypothyroidism, allergic diseases like asthma, autoimmune diseases like rheumatoid arthritis, cardiovascular diseases, various cancers, etc which are not treated using antibiotics. Simply put, you can’t use antibiotics for viruses. They only work on some forms of bacteria.
In some cases, disease-causing bacteria present in the human body cand become resistant to some antibiotics as they tend to mimic some parts of a virus which makes the antibiotics useless against them and in such a case different antibiotic or a combination of medicines are used.
Any disease that is not the result of a bacterial infection cannot be treated or prevented with the use of antibiotics.
Antibiotics are not used to treat viral infections, such as colds or flu, because antibiotics do not kill viruses. However, sometimes a doctor doesn’t know the exact cause of an infection — such as fever with body pain and flu-like symptoms or pneumonia, which can be caused by bacteria, viruses or fungi — so they may begin treatment with antibiotics with the hope that the patient will respond. If the patient doesn’t respond, they will need to look for other causes and treatment options.
Antibiotics are potent medicines that treat bacterial infections of all kinds. Antibiotics won’t treat viral infections because they can’t kill viruses. You’ll get better when the viral infection has run its course. Common illnesses caused by bacteria are urinary tract infections, strep throat, and some pneumonia, etc.