Pharmacist - Enquiring about a problem

A typical every day situation in a pharmacy where a pharmacist greets a customer and enquires about a medical problem.

Note that the pharmacist starts by asking:

"Good afternoon. Can I help you?" This is the standard way of initiating contact with a customer in any type of situation. The word 'How' can be added before the word 'Can' to similar effect, ie: "How can I help you?".

Note how the pharmacist starts different types of questions:

How often...?

The pharmacist asks "How often do you have to go?"
This refers to how often the customer has to go to the toilet.

Medical words: diarrhoea, headache, stomach

Possible problematic words: loose