I had a major toothache, it was so bad I felt like my tooth was on fire.
Why would it make you feel like your tooth is in fire?
Because I've used household cleaner to brush my teeth.
If you used a household cleaner then you should get medical help. It's not healthy to ignore health problems.
I tried to use some hydrogen peroxide and felt better after.
I'm glad you found some way to alleviate the pain. But the way you're trying to fix your toothache is going to be more detrimental to your health. You really need to schedule an appointment with the dentist.