This old lady went to the Doctor and explained her problem:
'I keep farting, Doctor, but I'm glad to say that there's no smell. I've been farting whilst I've been here several times and there is no smell at all'
'I have just the tablets you need' said the Doctor 'this prescription will sort out your problems.'
The lady did as he suggested but she was soon back to see the Doctor.
'I've taken the tablets but I'm still farting but now the smell is terrible' she complained.
'That's good' said the Doctor 'now we have sorted out your sinus problem we can see what we can do to stop your farting.'