C Saying what you think is the matter
• I think you have a stomach virus.
• You might have an allergic reaction.
• It sounds like you’re dehydrated.
• It looks like you were bitten and the bite got infected.
• Let me run a blood test to be sure.
D Giving advice
• You must drink at least 2.5 litres of fluids every day.
• Wear long trousers so mosquitos can’t sting you.
• You can use a bug spray on your exposed skin.
• Stay clear of shellfish the next time you order food.
• You’ve got to stick to water and dry bread for a few days.
• I will give you an ointment. Put it on the bite three times a day until the swelling is gone.