Our expert says:
Try Mucaine or Gaviscon. The only way one can confirm an ulcer is by doing a gastroscopy. It is performed by using a thin, flexible fibre-optic instrument that is passed through the mouth and allows the doctor to see whether there is any damage to the lining of the oesophagus (gullet) or stomach, and whether there are any ulcers in the stomach or duodenum.
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