Ice flakes, the processed product of the resin of the evergreen tree plant lobelia, or the trunk of lobelia obtained by distillation and cooling of the crystals, called lobelia ice flakes, also known as plum flakes. The aliases of ice chips are ice chips brain, ice brain, plum ice chips, flake brain, plum brain, etc. Ice chips are slightly cold in nature and have a pungent, bitter taste. It belongs to the heart meridian, spleen meridian and lung meridian. Its main effects are to open all orifices, disperse depressed fire, open the orifices and awaken the brain, remove opacity and brighten the eyes, reduce swelling and relieve pain. It is mainly used for treating stroke and silence, fever and dizziness, epilepsy and phlegm, deafness due to gas blockage, otitis media and pinworm disease. When used for closed evidence of dizziness, because the product has the function of opening the body and waking up the brain, but not as much as musk, the two often need to be used together, often with cowherd, musk, Huanglian, etc., such as Angong Niuhuang Pill. Ice chips can also be used for red eyes and swelling pain, throat paralysis and mouth sores, and also for the treatment of sores and ulcers that do not converge. It should be taken with caution by pregnant women and people with Qi deficiency and blood stasis. Modern pharmacological research shows that ice chips have anti-myocardial ischemic effect, can promote the growth of glial cells, with pain relief, antiseptic and anti-inflammatory effects. Ice chips can also be anti-fertility and have a certain sedative effect. Adverse effects are gastrointestinal reactions as well as excitation of the central nervous system.