Unveiling the Itchy Truth: How Histamine related to skin issues.

Histamine, a compound that plays a pivotal role in our immune system, can also be the harbinger of discomfort for many people. While it is best known for its involvement in allergic reactions, histamine’s impact on the skin is often underestimated. In this article, we will delve into the world of histamine and its link to various skin diseases and shed light on the mechanisms.

Histamine is a natural chemical compound produced by our bodies we can also get it from certain foods. It is stored in specialized cells known as mast cells, basophils and lymph nodes, which all are part of our immune system. Histamine has a wide range of functions, including regulating stomach acid production, aiding in neurotransmission in the brain, vasodilation and contributing to the bodys defence mechanisms.

However, histamines most famous role is its involvement in the immune response. When the body detects an allergen or foreign invader, it triggers the release of histamine, which sets off a cascade of events designed to eliminate the threat. This includes causing inflammation, increasing blood flow, and attracting white blood cells to the affected area.

Histamine intolerance occurs when there is too much histamine in our body which we can’t break down. Since histamine is involved in many body functions, too much of it can have a widespread impact involving various systems such as the digestive tract, brain, respiratory system, and cardiovascular system. For example, nonskin related symptoms of histamine intolerance are irritability, anxiety, panic attacks, headaches, migraines, brain fog, seasonal allergies, asthma, acid reflux, digestive symptoms like stomach pains, diarrhoea and even PMS.

The skin, being the largest organ of the human body, is not exempt from histamines influence. The release of histamine in response to an allergen or irritant often leads to several skin reactions, including redness, itching, swelling, eczema, acne and hives. Some common skin conditions associated with histamine activation include:

  • Urticaria (Hives): Hives are raised, red or white, itchy welts on the skin caused by the release of histamine. They can appear suddenly and often disappear just as quickly.
  • Atopic Dermatitis (Eczema): Eczema is a chronic inflammatory skin condition that is closely linked to allergic reactions. The release of histamine can exacerbate the symptoms of eczema, leading to red, itchy, and inflamed skin.
  • Contact Dermatitis: When the skin comes into contact with an allergen or irritant, it can lead to contact dermatitis. Histamine release is a part of the inflammatory response, causing itching and redness at the affected site.
  • Pruritus (Itching): Histamine is a potent itchinducer, and excessive histamine release can lead to generalized itching without any visible skin changes.

Histamine exerts its effects on the skin through its interaction with histamine receptors. There are four types of histamine receptors (H1, H2, H3, and H4) that are found throughout the body, including the skin. H1 and H4 receptors are the ones predominantly responsible for skinrelated effects.

  • H1 Receptors: Activation of H1 receptors leads to increased vascular permeability and the dilation of blood vessels. This results in the classic symptoms of allergic reactions, including itching and swelling.
  • H4 Receptors: H4 receptors are primarily expressed on immune cells, and their activation can further enhance inflammation in the skin, contributing to the symptoms of the above skin diseases.

Histamine plays a pivotal role in the bodys defence mechanisms, but too much of it can be troublesome. By identifying triggers for histamine intolerance and using an appropriate personalised approach can find relief from the itchy truth of histamineinduced skin conditions and regain their skins health and comfort. If you are experiencing eczema, dermatitis, skin issues, or any signs of histamine intolerance, I encourage you to arrange a consultation with me. My aim is to find the underlying factors contributing to your condition and provide a tailored therapeutic approach to restore your health. You can book your free discovery call here.

Sources:

Comas-Basté, O., Sánchez-Pérez, S., Veciana-Nogués, M.T., Latorre-Moratalla, M. and Vidal-Carou, M. del C. (2020). Histamine Intolerance: The Current State of the Art. Biomolecules, [online] 10(8).

Hakl, R. and Litzman, J. (2023). Histamine intolerance. Vnitřní lékařství, 69(1), pp.37–40.

Zhao, Y., Zhang, X., Jin, H., Chen, L., Ji, J. and Zhang, Z. (2022). Histamine Intolerance—A Kind of Pseudoallergic Reaction. Biomolecules, 12(3), p.454.

Scroll to Top