Definition of rash - What it is, Meaning and Concept

The Greek word exanthēma , which can be translated as "efflorescence" , arrived in late Latin as exanthēma , which in our language I derive in rash .The term is used in the field of medicine to name a type of skin rash .

rash usually appears next to a warm up of the skin .This reddish rash, when pressed with a finger, disappears momentarily.Diseases such as chickenpox and the measles are characterized by the rash.

The rashes, therefore, are clinical signs of certain diseases .Their amount and distribution in the body vary according to each case.The rash usually appears due to an infection or an allergic reaction.

The maculo-papular rashes are the most common.They consist of papules ( lesions with an elevation) and maculae (lesions that are flat) that They can have different forms. Purpura rashes (with ecchymosis, petechiae and bruises) and vesicular rashes (with blisters and vesicles) are other kinds of rashes.

Chickenpox, for example, is caused by the virus chickenpox-zoster .This disease has a latency period of two to three weeks before manifesting with a picture similar to the flu.Its continuous development with the rash, whose papules become vesicles and later in scabs.These lesions can cause permanent scars according to their evolution and the wounds that the patient self-generates if scratched.

As for the measles , this viral disease has an incubation of between four and twelve days.Then the rash appears with a generalized rash throughout the body.

Subitoma subito

It is known as subito rash , sixth disease or childhood roseola to a disease that arises from a virus in children between 4 months and 2 years of age, although it may occur at other ages.The means of transmission are saliva and blood.Skin lesions are seen in the form of pink or red dots that become white when pressed.At first, they appear on the trunk and neck, but then extend to the extremities and face.

Despite certain similarities in symptoms, the sudden rash should not be confused with scarlet fever, measles and rubella, three other exanthematic diseases.In cases of hypersensitivity to drugs, a reaction can occur similar.

Regarding the most common cause, this is usually the human herpes virus 6 , but it can also appear as a result of 7 Within 6, two types are recognized: A and B , the latter being the one that accompanies 99% of cases of sudden rash.This disease has a period of incubation that goes from 5 to 15 days and, generally, the reservoir of the virus that causes it is an adult who has been in contact with it.

It is common for patients with a sudden rash to experience a high fever that appears without apparent cause, and lasts for two to three days.It is only when they recover the normal body temperature that the small pink pimples, which gradually cover a larger surface of the skin.The rash itself does not usually exceed two days.

Although it usually does not occur, it is possible that certain infections arise from this infection.The most common is a picture of febrile seizures that occurs in the phase prior to the appearance of the rash.that seizures are not usually serious and that in some patients they occur as a direct result of a central nervous system involvement.In people who have compromised their immune system, on the other hand, it is normal for cases of hepatitis and encephalitis to arise.