Help! H202 using in ear and nose splash

Hello
I ordered the 35% food grade H202 and waiting.
I read a lot of good reports on the whole web about the use of H202 in ears and nose.
1. Do you know the safe proportion on how much H202 to water.
2. Sometimes when I am tired or eat junk food, specially sweets, I noticed that when I breath, some air will come out through my right ear. I do not know what to think of this.
3. And also If I eat sweets, cheese and junk food before bed time, I woke up in the morning with numbness in hand, leg, feet etc. Thank God it will go away immediately after a while.
Any suggestion welcome.

Thank you
Watch

PS: I regularly cleanse and purify my body. Try to watch what I put in my mouth. And I also believe that I got to live a little. Smile.