My sister has been having chronic itchy ears for a couple of years and she has tried many things to help with the constant itch. She recently mentioned this problem to me and I suggested she give silver nanoparticles a try to see if it would help alleviate the itching. She tried using 20 ppm silver nanoparticles (clear yellow) and applied it with a q-tip to her ears two times per day. She told me that she had forgotten about the itchiness after the first application until it started to itch again about 8 hours later. She reapplied it again before bed and slept through the night without the itchiness that would usually wake her during the night. She applied it again in the morning and again before bed. So far no more itching!