Use glycerin topically for moisturizing and softening are prone to dryness. Apply glycerin on the skin in small amounts and massage lightly. Contraindications to this method of use of glycerin does not exist. Possible side effects in the form of a small irritation, which is manifested by burning sensation.
Use glycerin in the form of microclysters rectum in constipation of various etiology (age, bedridden patients, etc.). It will have a slight irritating effect on the mucous membrane and stimulating effect on the smooth muscles of the intestine. As a result, the bowel movements will increase, and it helps to eliminate constipation.
Microclysters do in the morning after Breakfast, 1 time a day in a volume of 5 ml.

Of the side effects with this method of introduction of glycerol may result in irritation of the rectal mucosa, usually occurs with prolonged use.
Contraindications worsening of hemorrhoids, tumors, inflammatory diseases and

fissures the rectal mucosa.
Apply glycerin inside with increased intracranial pressure to reduce cerebral edema and to reduce intraocular pressure in glaucoma. Use the dosage of 1 g per kilogram of body weight i.e. 2 ml of 50% aqueous glycerin solution. Aqueous 50% solution prepare by mixing equal parts of distilled water and glycerin.
Among the side effects with this method, the application of glycerin may be headache, nausea, vomiting, diarrhea. Diabetic patients may experience a brief rise in the blood sugar level, up to hypoglycemic coma. In persons with pathology of cardiovascular system possible the arrhythmia, up to heart failure and pulmonary edema.
Contraindications internal use of glycerin are a severe form of diabetes, myocardial infarction, disorders of the liver and kidneys.