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Since the lump feeling disappears on taking anti-acid drugs it is quite possible it is due to gastric acid
causing irritation to your larynx
. In such situations there is reflux of the gastric juice and acid from your stomach. You need to follow some tips. Avoid spicy food, coffee, colas, smoking
and alcohol at all costs. Eat plenty of fresh fruits and green leafy vegetables. Drink plenty of water. Avoid lying down immediately after eating meal, but rather you can lie at 45 degrees incline till 2 hours has elapsed and then lie down on horizontal. The raw feeling is due to acid damage which should resolve if you let it heal. Avoid singing for a week or so till the lesion heals. It would be best to get examined by the ENT Doctor again to see if there are any new lesions or swellings.