Allergy and Asthma

Allergy can be mild as well as severe. Mild allergy can be cured at home but for severe allergy one should contact the doctor. The most severe problem which occurs due to allergy is Asthma.The most common allergens are:Pollens: Pollen grains are very small in size and they appear powdery substance. Different plants have different pollen and there shape and size differs accordingly. Pollen appearance is seasonal so people who are allergic to one or the other allergen are affected by allergy seasonally.Allergic people should know geographical condition of a place before visiting. It is not confirmed that there will be no plans from which a person is allergic.Dust: Most common allergen is dust. Most of the people suffer from dust allergy. Dust settles in house on furniture and other household material. Sometimes outside dust blows with wind and causes allergy.Food Allergy: Some people are allergic to food items like milk, cheese, butter, egg etc. Most common symptoms observed among people suffering from food allergy are: gas, diarrhea, headache, sores in the mouth etc..Pet Allergy: People keeps pet at home for fun but for some people that fun becomes hazardous. Animal dander is one of the common allergen.Chemical allergy: Some chemicals also cause allergy to people. Some people are allergic to smell of perfumes and deodorants. People suffering from one or the other allergy should avoid above mentioned allergens. Allergy can not be treated or cured fully but yes it can be avoided. Till today no permanent solution is available for getting rid of allergy. There is one allergy drug Allegra which is taken by people suffering from various allergies after consulting doctor.Anti allergy drug Allegra should be taken after consulting a doctor. Allegra side effects are not severe but proper precautions should be taken while taking allegra drug.

Why Does it Hurt?

What hurts when you have a headache? Several areas of the head can hurt, including a network of nerves which extends over the scalp and certain nerves in the face, mouth, and throat. Also sensitive to pain, because they contain delicate nerve fibers, are the muscles of the head and blood vessels found along the surface and at the base of the brain.
The bones of the skull and tissues of the brain itself, however, never hurt, because they lack pain-sensitive nerve fibers.
The ends of these pain-sensitive nerves, called nociceptors, can be stimulated by stress, muscular tension, dilated blood vessels, and other triggers of headache. Once stimulated, a nociceptor sends a message up the length of the nerve fiber to the nerve cells in the brain, signaling that a part of the body hurts. The message is determined by the location of the nociceptor. A person who suddenly realizes "My toe hurts," is responding to nociceptors in the foot that have been stimulated by the stubbing of a toe.
A number of chemicals help transmit pain-related information to the brain. Some of these chemicals are natural painkilling proteins called endorphins, Greek for "the morphine within." One theory suggests that people who suffer from severe headache and other types of chronic pain have lower levels of endorphins than people who are generally pain free.

Headache

An estimated 45 million Americans experience chronic headaches. For at least half of these people, the problem is severe and sometimes disabling. It can also be costly: headache sufferers make over 8 million visits a year to doctor's offices. Migraine victims alone lose over 157 million workdays because of headache pain.
Understanding why headaches occur and improving headache treatment are among the research goals of the National Institute of Neurological Disorders and Stroke (NINDS). As the leading supporter of brain research in the Federal Government, the NINDS also supports and conducts studies to improve the diagnosis of headaches and to find ways to prevent them.