Although it is tempting to regard Wind as being purely external, if we say that an individual has had an invasion of Wind, it is the individual’s reaction to the invader that we are describing, not that we expected a windy day to have been the trigger. A windy day might or might not have been a cause.
In other words, whether or not the patient had been exposed to the wind as it blows the leaves on trees, or modern equivalents of wind like
a blow heater
an open window in a fast car
sitting in a draft
a draft, (all being varieties of ‘wind’)
he would be described as having a Wind invasion if his symptoms included enough of the following. As you’ll see, there are two kinds, External and Internal:
External Wind Invasion
Symptoms that change or alter rapidly or from one minute to the next: pain moves from place to place in the body
Muscles or joints are sore
Movement is limited, usually because of stiffness
Runny eyes (lachrymation)
Shivering, twitching, symptoms that move around, spasms
Internal Wind can be harder to treat and to cure. That’s because the underlying deficiency has probably arisen over time and will take time to cure. So that means that, though occurring at all ages, it occurs more often as you grow older.
For example the slight tremor that many older people have, especially if they are nervous, is an example of Internal Wind. Another form of Wind that older people, especially, suffer from is shingles which starts with an itch. Itching makes you scratch. Scratching is a movement so has the properties of Wind.