I'm really aware of this! When I went to bed with the drops of oil on my hair, I was very aware of the smell. I actually do like it now, but it's extremely strong and yes, it smells just like pizza. But the shampoo I used, even tho it has a drop or two of the oil in it, washes the smell out.
When I used it in my ears I could smell it wafting about me all day unless I really got in there with a q-tip and keep squeegee-ing it out...!