There are many side effects of antibiotics. Normally, after taking an antibiotic, it is necessary to take yogurt and probiotic for three months to restore the good bacteria you need for health and that is only one of the issues of antibiotic oversuse.
You should use antibiotics when needed. However, In Lancet, the prestigious British Medical Journal, they reported that 84% of patients with sinusitis got well on the antibiotic. And, 76% of the sinusitis patients got well on placebo.
Admittedly the medical profession has not done a good job of avoiding antibiotic abuse. Part of the blame lies with the advertising and samples handed out so freely when a new “better” antibiotic is being promoted. Part of the blame is with the doctors; a patient walks into the doctor’s office with a nose full of pus, and walks out with the nose full of pus– with a prescription for an antibiotic. Why didn’t the doctor do a treatment that would have removed that pus? It only takes a few minutes, for example, to do a pulsatile irrigation or a suction removal. With the pus removed, maybe an antibiotic could be avoided. When you remove the pus, you reduce the total number of bacteria. The fewer the numbers, the more probability that natural healing factors will cure the illness. After all, before we had antibiotics, people did get well with an infection by natural means.