You may also use 3% hydrogen peroxide and pour one teaspoon or two into your ear. Hydrogen Peroxide will zap any bacteria/parasites that do not belong in your ears. Hold it in for atleast 15-20 minutes or atleast until the fizzing sound stops. Repeat the process until the fizzing sound stops for both ears. Repeat this process once in six months and you should always be clean in your ears.
The Hydrogen Peroxide bottles should be opaque and not transparent and they should not be exposed to the sunlight. You can always check the potency of the 3% hydrogen peroxide by taking few drops on the back of your hands/on the knuckles or the edge of the finger nails...the grooves...and you should see fizzing or white frothiness around the area especially after you have sweated for a while. If not, the potency of the 3% hydrogen peroxide is lost and it is just plain water now. Hope this helps!