The skin is our largest and heaviest organ. It protects us and lasts our Body together. If the skin becomes ill or has an allergic reaction, a rash develops, also called an exanthema. This is possible on the whole body and can look different: spots, pustules, blisters, wheals, nodules or scales form on the skin. Perhaps the rash itches or hurts and is particularly annoying.
Causes of Itchy Rash
Around skin rash to fight, the causes must first be clarified. Reasons for rash can be harmless. If you have stress at the moment, for example, this can be responsible for your skin problems. In addition, the skin often reacts negatively to medication. An exanthem can be the side effect of antibiotics, cortisone, non-steroidal anti-inflammatory drugs like NSAID-ASA or ibuprofen as well as medicines for high blood pressure, gout or diabetes.
Be sure to keep a close eye on where your rash is, what it looks like and whether it is spreading – this is the only way to narrow down the many causes of rash. For example, if your rash forms a butterfly on the left and right of your nose, it could be lupus erythematools, an autoimmune disease. Other causes can be allergies, infectious and skin diseases. These are listed below.
Rash is often caused by allergies. This includes, for example, contact allergy. For example, if you use a cream that contains incompatible ingredients, your skin will start to itch, swell, wet or redden. Allergens can be metals, preservatives or fragrances. (# 01)
Itchy rash due to allergies
Rash is often caused by allergies. This includes, for example, contact allergy. For example, if you use a cream that contains incompatible ingredients, your skin will start to itch, swell, wet or redden. Allergens can be metals, preservatives or fragrances. If they remain on the skin longer, blisters, nodules or painful tears can form. If your skin is covered with red bumps that are reminiscent of mosquito bites, you are likely to suffer from hives (utikaria).
Even if your skin is not yet used to sunlight and is quickly sensitive to UV radiation, a rash develops that itches and develops blisters or wheals. Another form of sun allergy (polymorphic light eruption) is Mallorca acne. The skin reacts when the substances formed by sunlight encounter fats, emulsifiers or waxes. These can be found in cosmetics such as sunscreen and in the body’s own sebum. Itchy rash develops.
Another form of sun allergy (polymorphic light eruption) is Mallorca acne. The skin reacts when the substances formed by sunlight encounter fats, emulsifiers or waxes. These can be found in cosmetics such as sunscreen and in the body’s own sebum. Itchy rash develops. (# 02)
Infectious diseases as the cause of an itchy rash
An exanthem together with fever, cough or diarrhea can be a symptom of various infectious diseases. What does your exanthem look like and where does it spread? Check to see if the following infections may apply to you.
With many teething problems forms itchy rash. For example with scarlet fever. The infection is triggered by infectious bacteria. Small redness develops in the armpits, chest and groin regions, which usually disappear after 3 to 5 days. In addition, those affected have a fever and often an inflamed throat. Measles is a viral, highly contagious disease that also affects fever and rash. First of all, red spots form behind the ears and neck, which slowly fuse and finally cover the whole body. The rash improves after about five days.
Another childhood illness is the hand-foot-mouth infection, which is very contagious but harmless. It is caused by the A type Coxsackie virus. It develops red, itchy rash, that slowly heals after ten days. Other symptoms of hand-Foot and mouth infections can include fever, headache and body aches. Chickenpox (varicella), which is caused by varicella zoster viruses, has similar side effects. Red spots and itchy blisters gradually spread on the skin. It takes quite a while until the chickenpox is over and the rash has completely subsided, as new pimples develop every day.
Shingles (herpes zoster) is also triggered by the varicella zoster virus. If you come into contact with these viruses for the second time, a belt-shaped rash develops, which spreads to the trunk and sternum. In a few cases, shingles also appear on the face and ears. The skin on the affected areas becomes red, swells and blisters. These burst after two to seven days and are covered by scab, which falls off after a while. (# 03)
Shingles (herpes zoster) is also triggered by the varicella zoster virus. If you come into contact with these viruses for the second time, a belt-shaped rash develops, which spreads to the trunk and sternum. In a few cases, shingles also appear on the face and ears. The skin on the affected areas becomes red, swells and blisters. These burst after two to seven days and are covered by scab, which falls off after a while.
If red-brown spots appear behind the ears, face, neck, arms and legs, it could be the rubella viral infection. The rash rarely itches and usually fades after two to three days.
You have to fight longer with the rash that develops with the ringing rubella (Erythema infectiosum). The rash occurs on the entire body and forms again and again within seven weeks. The rash is caused by the so-called parovirus B 19. The rash spreads from the nose and cheeks to the arms, legs and finally the entire body in the course of the infection. In many cases, the rash is like a garland wrapped around the body.
In the highly contagious disease Exanthena subtium – better known as three-day fever – the rash is mostly limited to the chest, abdomen and back. It is blotchy, red and itchy. Fortunately, the rash persists only for a few days. Itchy spots that resemble rubella can also develop on the skin in the case of the tropical disease dengue caused by viruses. The disease is spread by the Aedes mosquito, which is native to tropical and subtropical regions. The rash itches and resembles rubella.
A very itchy rash can also develop if you have Pfeiffer’s glandular fever. This is caused by taking antibiotics such as ampicillin or amoxiallin. Fever and rash are also symptoms of lice typhoid. This is caused by Rickettsia prowazekii, a bacterium transmitted by lice. After a short time, a spotty rash develops on the trunk, which spreads to the legs and arms.
Are your belly, chest and back covered with small, reddish, non-itchy spots and do you also suffer from diarrhea? Then you could have been infected with Salmonella and suffer from typhoid disease.
Genital herpes, also called "intimate herpes", is one of the sexually transmitted infectious diseases. Itchy blisters and redness form. The rash is caused by herpes simplex virus (HSV). The syphilis infection is also sexually transmitted. This is triggered by the Treponema pallidum bacterium. In the second stage, side effects of the disease include fever and headache. In addition, a rash develops in the genital area as well as on the palms of the hands and feet. Pink spots develop into copper nodules, which experience has shown does not itch, but can wet and flake.
Genital herpes, also called "intimate herpes", is one of the sexually transmitted infectious diseases. Itchy blisters and redness form. The rash is caused by herpes simplex virus (HSV). (# 04)
As another infectious disease that results in a rash, scabies should be mentioned here. Mites are stored in the body and cause a strong itchy rash that can be transmitted through close skin contact.
With the erysipelas (erysipelas) the lymph nodes of the skin become inflamed. Bacteria enter the lower skin layers through wounds and a painful, red swelling forms on the outside. Concomitant symptoms can include fever and headache.
Bacteria (borellia) transmitted by ticks trigger many different symptoms in humans. The bacteria can cause fever, headache and later even paralysis of the facial nerves and meningitis. If there is a red border around the tick bite, this is the first sign that she with Lyme disease are infected.
Grind or bark lichen (Impetigo contagiosa) is a contagious skin infection caused by the bacteria staphylococci or streptococci. On the mouth, nose and hands, water-filled vesicles appear, which itch and then burst after a while. Eventually, golden-yellow, red-edged crusts develop, which fall off and heal after a while.
A mild rash caused by viruses is also a symptom of inflammation of the liver (hepatitis).
In diseases caused by the "Condida" fungi, an exanthema forms in the skin folds. The mouth, armpits, anal and genital region as well as the thighs can be affected. In many cases, rash develops in the pharynx, in the mucous membranes and in the esophagus.
Skin diseases and itchy rash
Unlike infections, the rash caused by a skin disease is not contagious. One example is acne that occurs during puberty. White nodules and blackheads develop, which ignite after some time.
Atopic dermatitis sufferers also struggle with skin inflammation. These are very itchy and repeatedly form all over the body. The skin is exceptionally dry, red and blotchy. In babies, neurodermatitis is initially limited to the scalp and face and then spreads to the neck, trunk and in the diaper area.
If your rash is limited to the scalp, the reason is usually the overproduction of sebum. The skin disease is called head gneiss, is harmless and can be treated quickly with the right care. To the skin diseases also includes chronic psoriasis. The skin begins to flake and reddish, somewhat settling spots appear. If itchy, red nodules form on the inside of the wrist, on the ankles and lower legs, you are probably suffering from an autoimmune reaction and associated with it, the nodular lichen.
The skin diseases also include chronic psoriasis. (# 05)
Itchy rash: when should you see a doctor and what does this prescribe?
First of all, you should always go to the doctor if you are not sure about the causes of your rash. Does your rash appear again and again, does it increase or change? Does the skin itch or hurt badly? Do you also have a fever or other symptoms? Then be sure to see a doctor.
For example, they will do an allergy test with you or examine your blood if there is a suspicion that viruses or bacteria could be responsible for your rash. The doctor checks whether you have a skin fungus with the help of a skin smear. Anti-fungal agents are prescribed against these. Virostatistics help with a viral disease, antibiotics with infections caused by bacteria. Cortisone is most often prescribed if you have an allergy or skin condition. Care products that contain tar or urea also work for the latter.
For example, they will do an allergy test with you or examine your blood if there is a suspicion that viruses or bacteria could be responsible for your rash. (# 06)
How to properly care for your skin and prevent rashes
First of all, it is important to find out what skin type you have and to use appropriate creams and lotions. Dry skin must be cared for particularly intensively. When purchasing care products, pay attention to the ingredients and avoid perfumes and preservatives, as these can trigger allergies. It is also recommended to use washing lotions and creams with a neutral pH. This way, the natural protective acid mantle of the skin is not destroyed.
A lot of fresh air is also important for healthy skin. Extreme cold and too much UV radiation are bad for your skin.
Photo credits: © Shutterstock cover picture: namtipStudio – # 01: Juergen Faelchle – # 02: Fineart1 – # 03: Anukool Manoton- # 04: Marten_House – # 06: gorillaimages
About Sabrina Müller
Sabrina Müller, born in Berlin in 1982, is now a mother of three children. Actually, she didn’t want that many children. However, after her first daughter was really easy to care for, Sabrina and her husband decided to have more children. Nobody could have known that easy care does not always follow easy care. A girl and a boy followed the first daughter. Her gang of rattles is currently filling out Sabrina’s life. In addition to looking after the children, Sabrina is also involved in kindergarten and likes to sew and tinker.
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