The parasympathetic nervous system is one of the two main divisions of the autonomic nervous system (ANS). Its general function is to control homeostasis and the body's rest-and-digest response. The sympathetic nervous system (SNS) is one of two main divisions of the autonomic nervous system (ANS).Its general action is to mobilize the body's fight-or-flight response. Function. Control the body's response while at rest.he parasympathetic nervous system is part of the autonomic nervous system. It originates in the spinal cord and the medulla and controls homeostasis, or the maintenance of the body's systems.
Uses. Hydrocortisone is a natural substance (corticosteroid hormone) made by the adrenal gland. It is used to treat conditions such as arthritis, blood /hormone/ immune system disorders, skin and eye conditions, breathing problems, cancer, and severe allergies.t decreases your immune system's response to various diseases to reduce symptoms such as pain, swelling and allergic-type reactions. Hydrocortisone is also used to treat low hydrocortisone levels caused by diseases of the adrenal gland (such as Addison's disease, adrenocortical insufficiency).
Hydrocortisone is a steroid that is sometimes used to treat inflammation. You can buy hydrocortisone cream over the counter from a pharmacy for treating: 1  irritant dermatitis. 2  contact allergic dermatitis.3  reactions to insect stings and bites.our GP can prescribe hydrocortisone for use on your face, having first assessed whether it's the correct treatment and if it's safe for you to use. You should not use over-the-counter hydrocortisone preparations on your face, unless they're prescribed by a doctor.