Which of the below sentences are correct and better to use in informal English language?
A) Under my right foot is terribly itching.
B) My right underfoot is terribly itching.
C) The sole of my right foot is terribly itching?
And what if the position I was going to refer to was somewhere rather than my feet?
D) I have a painful pimple under(?) my right thigh.
E) A green chewing gum had stuck to the ...(back? / bellow? / underneath? / bottom? / none?) of my seat in the cinema.
In the last sentence please note that it's not talking about the backrest, rather it's talking about where you put your buttock.