Many
of the symptoms of skin disease result from inflammation in tissues of
the body. Cortisone, manufactured naturally by the body's adrenal
glands and also made synthetically, has been found to have a market
anti-inflammatory effect. Cortisone and its derivatives are steroids,
among the most effective anti-inflammatory drugs known. Their use can
substantially reduce the swelling, warmth, tenderness and pain that is
associated with inflammation.
While steroid dosage should be kept at the lowest effective level,
steroids must not be stopped suddenly if they have been taken for more
than four weeks. By this time, some shrinking of the adrenal glands
will occur, as their burden of producing cortisone has been relieved.
If illness or injury follows, the glands may not be able to produce enough cortisone
to keep you from going into shock. A slow reduction in the dosage of
steroids allows the adrenal glands to regain their ability to
manufacture natural cortisone.
Steroids may be given as a pill, by intra-muscular (IM) injection or may
be injected directly into the skin. In very severe
rashes and in cases where excessive cortisone ointment use has caused skin
thinning, the skin may be "put to rest" with a single shot
(or a short series of usually three shots) of cortisone (triamcinolone)
in the hip or thigh. This may disturb menstrual cycles, and can cause
elevated blood pressure to rise or diabetic control to worsen. Very
rarely this shot or other cortisone use can cause a collapse of the
hip joint. If you get pain in your hip or groin call your
Dermatologist on an emergency basis. These effects are very rare with
an occasional shot
Prednisone is the oral tablet form of steroid
most often used . Less than 7.5 mg per day
is generally considered a low dose; up to 40 mg daily is a moderate
dose; and more than 40-mg daily is a high dose. Occasionally, very large doses of
steroids may be given for a short period of time. This treatment
referred to as "pulse steroid treatment," involves giving
1000 mg of methyl-prednisone intravenously each day for three days.
Prednisone is an extremely effective drug and may be necessary for
control. Although many patients do not need to stay on steroids
continuously, those with severe disease may require long-term steroid
treatment.
There is usually prompt relief of most symptoms after initiation of
treatment with corticosteroids. In addition to prednisone, some other
cortisone derivatives include hydrocortisone, methylprednisolone (Medrol)
and dexamethasone (Decadron). Again, Prednisone and other steroids
should not be stopped suddenly. Patients should discuss the reasons
for using steroids and other treatment alternatives which may be
available with their physician.
With long term use, some of the more common side effects of steroids include changes in
appearance, such as acne, development of a round or moon-shaped face
and an increased appetite leading to eight gain. Steroids may also
cause a redistribution of fat, leading to a swollen face and abdomen,
but thin arms and legs. In some cases, the skin becomes more fragile,
which leads to easy bruising. These take weeks to begin appearing.
Psychological side effects of steroids include irritability,
agitation, euphoria or depression. Insomnia can also be a side effect.
These changes in appearance and mood are often more apparent with high
doses of steroids, and may begin within days. Injected Triamcinalone
(see above),
or oral dexamethasone seem to cause these changes less, but as they
stay in the body an undesirably long time, rendering them second
choices.
An increase in susceptibility to infections may occur with
very high
doses of steroids. Prednisone may also aggravate diabetes, glaucoma,
and high blood pressure, and often increases cholesterol and
triglyceride levels in the blood. In children, steroids can suppress
growth. These effects are reversed once the steroids are stopped.
Side Effects From Long-Term Use of Steroids
Side effects that may be caused by the long-term use of steroids
include cataracts, muscle weakness, avascular necrosis of bone and
osteoporosis. These usually do not occur with less than four weeks of
treatment.
Avascular necrosis of bone, usually associated with high doses of
prednisone over long periods of time, produces
hip pain and an abnormal MRI scan. It occurs most often in
the hip, but it can also affect the shoulders, knees and other joints.
Caught early, the joint can be saved by "decompression" by
an orthopedic surgeon. Once full developed, Avascular necrosis is
painful and often requires surgical joint replacement for pain
relief.
Steroids reduce calcium absorption through the gastrointestinal
tract which may result in osteoporosis, or thinning of the bones.
Osteoporosis can lead to bone fractures, especially compression
fractures of the vertebrae, causing severe back pain. Calcium, at
least 1500 mg of the calcium carbonate form or equivalent, should be
taken. There are new medications (Fosamax in particular) that also may help to prevent osteoporosis.
There is also a relationship between steroids and premature
arteriosclerosis, which is a narrowing of the blood vessels by fat
(cholesterol) deposits. In general, there is a close relationship
between the side effects of steroids and the dose and duration of
their use. Thus, a high dose of steroids given over a long period of
time is more likely to cause side effects than a lower dosage given
over a shorter period of time.
Corticosteroids are extremely effective anti-inflammatory agents
and can be very helpful in treating significant skin disease, despite
the side effects. Treatment with steroids should always be kept at the
lowest possible effective dose and should never be stopped suddenly.
Hopefully, we will soon develop effective alternative therapies that
will not be as toxic as steroids.