I tried CBD oil under my tongue and it only made me feel a bit foggy headed and nauseous. But I kept the bottle and years later, in desperation, rubbed it on skin where I had terrible pain from shingles. It immediately stopped the burning electrical type pain that comes with that illness. So then I started using it to rub into my skin over wherever I am having pain. And it works! I use the balm also but I believe the liquid works better. Perhaps that has to do with concentration. CBD oil was made legal under the Farm Act many years ago I understand, so as long as it has only a minimal of THC, the psychoactive ingredient in marijuana, it is legal. However, I did read that some states have rescinded that law and don’t allow even that. I am not sure about which states. I order from a company called Deep Relief in California and so far have not had any problems. It is very helpful although not as easy as a pill. But it can make the difference between bearable and unbearable pain, and with opioids on the chopping block it is important to know about.