I don't think dry ice is good to be using that way. It was meant to keep non-bodily things cold. If you have swollen lymph nodes must mean there is a serious infection in your system. By the time infection sets in, unfortunately alternative remedies are not strong enough to correct. Herbs and alternative remedies are good and helpful to people who are already healthy. ONce you become sick, it is doctor time. No time to be playing Russian Roulette with your health unless you already have a secret death wish.