Review : It does what it says on the box. A few drops in your ear canal, your ear feels warm/hot inside and your ear canal is dry after a few minutes. Caveats: The more you use the hotter it gets (I found 4 or 5 drops too much) The solution is very thin which would be fine apart from the fact that it runs out of the nozzle too easily (before the bottle is fully inverted and in position). It's quite hard to only get 2 or 3 drops at a time due to this (plus you can end up with it in the outer ear and jawline) The warming of the ear canal is not a particularly pleasant sensation and I found it made me dizzy and a little nauseous. The more drops you use the worse this effect is (for me anyway). All that said - it does the job well.