There is actually very little evidence as to what should constitute a full dose of antibiotics[1], and some doctors and researchers are now starting to discuss

There is actually very little evidence as to what should constitute a full dose of antibiotics[1], and some doctors and researchers are now starting to discuss this (however, due to public health message concerns, it's mostly kept pretty quiet). In many infections, once bacteria fall below a certain level, the body's immune system can kill off the remainder. [1] https://www.mja.com.au/journal/2015/202/3/knowing-when-stop-antibiotic-therapy https://www.mja.com.au/journal/2015/202/3/knowing-when-stop-...