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What is the Main Cause of Skin Allergy?

a woman scratching her arms

Skin Allergy

Itchy, red, bumpy skin can be painful, irritating and so embarrassing. These skin rashes can be caused by various things like exposure to plants like poison ivy or due to overmedication, allergic reactions, or food. Some rashes can also appear due to an illness such as chickenpox or measles. Both hives and eczema are related to some kind of skin allergies that cause the most common types of rashes of the skin. If you got infected with any kind of skin allergy your dermatologist can diagnose it easily and treat your condition with the best of his skills.

What does a skin allergy look like?

There are many different types of skin allergies that occur due to various reactions that your allergists can treat.

Atopic dermatitis is also known as eczema, results in very sensitive and dry skin. In addition, you may experience many red itchy patches. When eczema flares up it can bring with it many oozes, crack, and severe itch but also it can come and go over the passage of time. It becomes very itchy and can vary in severity from mild to severe skin conditions like scaly, red, and thick oozing skin.

Hives which are also known by the name urticaria are red itchy bumps that are raised to the surface. Mostly hives appear red in colour and in the center turn white when pressed.

Contact dermatitis is typically caused by exposure to an irritant or allergen. If you are having itchy red bumps on your skin, especially at the site which came in contact with some potential allergen or irritant, then it is very much confirmed that you are experiencing contact dermatitis.

If you think that you have any of such conditions, your dermatologist can conduct an examination and do further testing to help determine the cause of your skin condition and can recommend the best treatment to help you relieve your symptoms.

Some Common Causes

There are a number of potential causes present for the allergic condition of your skin rashes, including disease, allergies, reactions, and other medication reactions. They can also be caused by viral, fungal bacteria, or some parasitic infections.

Contact dermatitis

The most common cause of skin rashes is contact dermatitis which occurs when the skin has reacted to something that it came in contact with. The skin then may turn itchy, red, and inflamed. Common causes are: 

  • Beauty Products
  • Dyes in clothes
  • Poisonous plants like poison ivy or sumac
  • Some chemicals like latex or rubber

Medications Can Also Cause Allergic Reaction 

There are many medications that can cause rashes in people; this may be due to a side effect or an allergic reaction. Also, there are cases where some medications, like some antibiotics, can cause photosensitivity, that is they make the individual more vulnerable to sunlight. Such a photosensitive reaction looks like a typical sunburn.


Infections caused by viruses, bacteria or fungi can also cause a skin rash. These rashes' sensitivity will vary depending on the type of infection caused. For example, a common fungal infection known as candidiasis causes an itchy skin rash that generally appears in your skin folds.

It is always advisable to see a doctor if your skin caught an infection.

Autoimmune conditions

There are also autoimmune conditions that occur when an immune system starts attacking the healthy tissues of the body. Also, there are certain autoimmune diseases that can produce skin rashes.

Skin allergy Home Remedies

Rashes appear on the skin due to many reasons. Usually, they come and go by themselves or otherwise, you can speed up their recovery by trying some home remedies to ease the severe discomfort.

  • Use A Mild Soap: These types of soaps are available in the market and advertised as soaps for sensitive skin or as baby soaps.
  • Avoid washing with hot water instead use lukewarm or cold water only.
  • Do not cover your rashes with any bandage.
  • Do not rub the rash.
  • Use unscented deep moisturizers for dry rashes as in the case of eczema.
  • Never keep on experimenting with newly launched market products as these lotions or cosmetics products can cause allergic reactions to your skin.
  • Do not scratch the allergic spot as it increases the risk of infection.
  • Some cortisone creams can be purchased to ease the symptoms of allergy.
  • Calamine has the capability to relieve symptoms of rashes for example poison oak, poison ivy, and chickenpox.

Ibuprofen can be taken orally in case the rashes on the skin cause mild pain but do not consider them as a long-term solution as they just relieve you of the severe symptoms but do not treat the cause of the skin rash.

Always take the professional advice of a trusted dermatologist before starting any medication. Always look for the constituents of the over the counter products and compare them with others to ensure the effectiveness and suitability of the product.

How To Relieve The Itchiness From Skin Rashes?

Always keep in mind that you do not need to scratch the allergic spot as it is an open invitation for the infection to cause harm to your skin.

Always apply a good moisturizer as soon as you take a bath. It will reduce the chances of your skin becoming dry.

As soon as you become aware that this skin condition is not fading away with the treatment you are going through or it is aggravating the skin rashness and bringing your condition into more severity, you should consult the dermatologist for prescribing the medication.

Several moisturizers and antihistamines are available OTC that helps in easing dryness and irritation.

Take Away

Skin allergies and other skin disorders are very irritating and bothersome with severe symptoms of uneasiness. Unfortunately, it always takes time to find out or understand the root cause of your skin allergy but once it is found you can consult the medical professional to prescribe you the correct course of treatment.