I’ve had my ears pierced for over 30 years. I don’t change the earrings or fiddle about with them. For the last two weeks one piercing has been weeping (a lot) at the back which then dries to a crusty mess. I’ve washed the lobe with salt water and diluted dettol (and the earring which is now removed) but it keeps weeping. It’s not sore or painful. Does anyone have any idea why?