Removing the Problem. The best way to get rid of a stuffy nose is to avoid tobacco and cigarette smoke no matter what. I know from personal experience that cigarette smoke will damage the lining of your sinuses and cause swelling in your sinus membranes, the chief cause of acute or chronic sinusitis.
The process in which several body systems work together to maintain the balanced environment is called homeostasis. The endocrine and nervous system work closely together to help maintain homeostasis. Examples of where they work together are thermoregulation and osmoregulation.
The pituitary gland is a gland in the brain which produces chemicals called hormones (an endocrine gland). Hormones are chemical messengers which help different organs in the body communicate with each other. The pituitary gland is one part of a messenger system. The pituitary gland helps to control your body's functions by releasing hormones into your bloodstream. These hormones are transported in your blood to their target. Here they usually cause the release of a second hormone.