Aloe vera is a stemless Succulent plant (water storing plant) which grows in dry conditions is widely used in herbal medicine/Ayurveda. While cultivating Aloe vera, care should be taken that there is no water logging.
As mentioned above, Aloe vera has many medicinal properties and it consists of around 150 nutritional ingredients. The Aloe mainly consists of Anthracene Glycosides, Vitamins, Amino Acids, Polysachharides, Salicylic acid, Saponin, Enzymes, Minerals, Sterols etc.

The dried juice of Aloes have Anthracene Glycosides which consists of aloe-emodin, aloin etc. They cause irritation to the muscles in the intestine and hence act as ‘purgatives’ (also known as Laxatives which help in bowel movement). They also stimulate mucous secretion and prevent absorption of water and cause purgative action. They also produce abdominal pain to cause diarrhoea for people with constipation.

Aloe Vera has anti-microbial and pain-killing effects. They are also used in the treatment of acidity. It is a therapeutic healing agent which acts externally and internally. It acts externally as an astringent, anti-fungal and healing agent on the skin wounds. It also acts as an emollient (substances used for softening skin).
When it is used internally, it lowers the cholesterol levels and is used to correct digestive disorders like acidity by killing Helicobacter pylori (bacteria which cause acidity).

Aloes also have anti-bacterial, anti-viral properties. They act as anti-inflammatory agents. They also act as detoxicants. Aloe Vera can also be used as anti-pyretics (drugs) in reducing fevers. Their gel is good for diabetic patients if taken internally. The Aloes do not cause any side-effects and can also be used in cosmetics to smoothen the skin and for cleansing action. It is also used to heal burns.
Aloe vera is obtained in the form of gel, juice and powdered forms. As it is non-toxic, it does not cause any adverse reactions when taken along with other drugs.