Expert answer:
Only use antibiotics when your doctor prescribes. There are a number of factors that must be taken into account when deciding whether or not to use antibiotics, much of the subjectivity and experience of the doctor count at that time, in addition to the level of anxiety of the patient. There is no fixed rule (though that would be ideal), in medicine 1 + 1 = 0 or 1 or 2 or 3 or ...
