I have a bad tickly cough as part of flu symptoms. My doctor has prescribed a 5-day course on Amoxicillin, but this has not addressed the tickly cough, which seems worse at night.

You could try Bronchosan Cough Syrup as this is traditionally used for tickly coughs and you could also add in the Echinaforce^® Sore Throat Spray as well.

These are both OK if you are still on the antibiotics.

Do remember when you have finished the antibiotics to do a course of probiotics. Antibiotics, unfortunately, kill off a lot of the friendly bacteria in the gut which may then stress the immune system further making you more vulnerable to repeat infections.