At what age can we help to dig our LO's ear wax?

PD advise me not to dig ear wax out on our own because it will make the wax go further in. My gal only 9mo but has a big ear wax in right ear and she is always pulling her ears. PD gave me an ear drop and she said the ear wax may flow out on its own but maybe alittle bit not all. Since she is so young she can't do anything f to get it out for her. But for older kids PD can use flushing out method to flush the ear wax out. That said my mom has helped my niece dig out ear wax with those traditional wooden stick with a hook at the end and she was about 3 years old. Oh gosh the wax is really big, I dunno how her hearing can be normal with such a big piece inside lol. How old is your kid?