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Infectious diseases develop when foreign bodies are contaminated into the human body. These alien objects are germs, viruses, fungus or parasites. These organisms are transmitted by infection from other humans, animals, contaminated food, or from exposure to any environmental factors that are contaminated with any of these objects.
These infections have many symptoms on the body, including high body temperature and aches, in addition to other symptoms vary depending on the location of infection, type and severity of infection. Infection can cause mild illness, and therefore no more treatment than home treatment. In contrast, there are serious cases that may cause death.
Symptoms of infectious diseases

Definition of the disease

Is a general and severe allergic reaction that occurs within minutes of exposure to a substance that has caused irritation and sensitivity to the affected person, a serious condition that may be life-threatening sometimes if not treated properly.

The substances that cause allergic reactions are numerous and varied and vary from person to person depending on the sensitivity of each person to these substances.

For example, pollen scattered in the atmosphere may be irritating, as well as stings of ants and bees, or some types of food or medicines or cosmetics and hygiene ... And many more.

Symptoms of the disease

Symptoms of such conditions vary in severity from onset of itching or scratching to shock and loss of consciousness (due to low blood pressure) which can lead to death.

Symptoms associated with this disease include:

Allergy appears in the form of a general rash of itching or scratching.

Swelling of the face, lips and eyelids.

Swelling of tongue and vocal cords.

Difficulty breathing, breathing is accompanied by a squeak or squeak.

Rapidly low blood pressure may cause loss of consciousness if the condition is not treated quickly.

Definition of the disease

Dandruff is a chronic problem of the scalp, which is characterized by the presence of itching and scaly in the skin of the scalp, and the incidence of dandruff is not contagious as some believe.


Dandruff usually begins at the beginning of young adulthood and lasts until about the age of 40. Men are more likely to have dandruff than women. People who eat foods that are not rich in vitamin B, zinc, and some types of fat are more likely to have dandruff than Others.


The causes of disease


The cortex produces a difference in weather conditions from heat to cold, where the scalp produces large amounts of squamous cells that act as thermal insulators on the scalp until the brain protects from coldness in the air


Therefore, the hair follicle is not a disease, but is a self-defense of the body against the cold in the atmosphere, but the growth of some fungi on this peel works on the adhesion and separation from the scalp so that it floats on the surface of the hair and scattered the time of combing on the shoulders.

When the skin is fatty, it has the ability to secrete fat, the skin peel adheres to these secretions on the scalp where it causes skin itching. Also, the scalp is exposed to certain chemicals (hair creams, hair spray, dyes, hair stabilizers). Etc.), or exposure to elements of environmental pollution or eating some foods or medications can be helpful factors, and factors that help to be a

Complications of infectious diseases
The condition of the infection usually ends quickly and without the need for a specific treatment, and even sometimes, the patient does not feel any symptoms of the disease.

- Blood test: It is possible to find indications of the process of contamination in the body by a blood test, when conducting a census of white cells. In some cases, this test is sufficient to detect the type of contamination.