Will hydrogen peroxide kill all flu germs?

I dipped my daughters thermometer into a bottle of hydrogen peroxide to kill the flu germs so I could use it when I felt hot as well.
Now I’m wondering, does my bottle of hydrogen peroxide have flu germs in it or does the hydrogen peroxide actually kill all flu germs?
Can I now use it safely, I’m wanting to put some in my ears as I have lots of ear wax, but wondering if the bottle of HP will have flu germs in it. I should have tipped some of the HP out instead of just dipping in the thermometer to sterilise. I know this question might be absolutely ludicrous! I just don’t want to transfer the germ bug back into my body somehow. If this is a stupid question please don’t hassle me, I’ll cry. I’m very sensitive! ;)