Drew, would love to hear more about the specific herbs you are adding. Vitamins were added long ago and are still sold in e-liquid. But no one went the herbal route. Now, I'm one of those who dismiss homeopathy completely, but herbals are another matter, with a long history of use. I just don't know enough about the practice to select herbs for specific conditions, or to control dosage. Either PM Kate or I, or post what you're doing in the DIY thread.
We don't want to go overboard in adding stuff to commercial liquid, but if you've found something that works for you, let us know.
BTW: There is no evidence PG kills rhinoviruses, the germs that cause the common cold. Flu? Yes. Colds? No. And it only kills via contact, so it kills inhaled viruses. West Nile doesn't originate in the lungs, so PG wouldn't help prevent it.
We don't want to go overboard in adding stuff to commercial liquid, but if you've found something that works for you, let us know.
BTW: There is no evidence PG kills rhinoviruses, the germs that cause the common cold. Flu? Yes. Colds? No. And it only kills via contact, so it kills inhaled viruses. West Nile doesn't originate in the lungs, so PG wouldn't help prevent it.