Just thought I'd chime in real quick. For about the past couple months I have had a severe sore throat. Saw all the remarks on drink a little water, lower the NIC content, and see a doctor, all of which I did. What I discovered is that it was the silica wick that was causing my sore throat. I now use a 100% cotton wick which seems to be doing me better (of course I have a rebuildable atomizer). Just an FYI, I was chain vaping, which I am doing again, with no problem yet. I'm glad this is working because I really need to get off the analogs!