Tolerance does occur with drugs. It can happen within a few days of taking sleeping tablets, and sleep may be disturbed after stopping them. Repeated use of opioids like morphine for pain can cause dependence and tolerance. Drugs like ibuprofen have side effects and a good general rule is to use the minimum effective dose for the shortest time.
The correct dose of antibiotics, for the right length of time, is vital ! This depends on age, weight, severity of infection and other factors - too little can lead to resistance, too much can lead to toxic effects. Treatment which is too long also encourages resistance, is expensive and may lead to side effects.
Our responsibility, in UK as in the Philippines, is both collective and personal. People are misusing antibiotics, with or without doctors' prescriptions (which can themselves be inappropriate) !