The Link Between Eczema and the Immune System

The immune system serves as the body's defense mechanism against harmful pathogens and foreign invaders. However, for us eczema warriors, the immune system often becomes dysregulated, leading to immune responses that contribute to the persistence of the condition. One key aspect of eczema is inflammation, which is regulated by the immune system in response to various triggers. In individuals prone to eczema, the immune system overreacts to perceived threats, resulting in increased inflammation in the skin. This inflammatory response means the redness, swelling, itching, and the rash seen in eczema patients.

Immune dysregulation in eczema extends beyond localized skin inflammation. Research suggests that individuals with eczema may have underlying systemic immune abnormalities, affecting various parts of the body beyond the skin. This systemic immune dysfunction can be reason why eczema patients are prone to other conditions, such as allergies and asthma.

Several factors can trigger this immune dysregulation in individuals with eczema. Genetics might play a role in here, genetic variants associated with an increased risk of developing eczema include mutations in the FLG gene, which encodes filaggrin, a protein crucial for maintaining the skin barrier. Variations in genes involved in immune regulation and alterations in genes related to skin inflammation and response to allergens, these genetic factors contribute to our susceptibility to eczema and can influence the severity of the condition.

Recently during an allergy test, I found out that I am allergic to dust mites and mold. So environmental factors, such as allergens, pollutants, and microbial exposure, can dysregulate the immune system and trigger eczema flare-ups. A compromised skin barrier allows irritants, allergens, and microbes to penetrate the skin more easily, triggering immune responses and this create an inflammatory cycle seen in eczema which further weakens the skin barrier. I have noticed that even water, specially hard water can worsen my skin.

Understanding the role of the immune system in eczema will help us devise better treatment strategies. Traditional eczema therapies only focus on the symptoms and provide symptomatic relief such as itching and inflammation, through topical corticosteroids, moisturizers, and antihistamines. New treatment approaches aim to modulate the immune response in eczema more directly. Biologic agents, such as dupilumab, target specific immune pathways involved in eczema. I have noticed an improvement in my skin by making simple changes as installing a shower filter and also by restoring the skin barrier function, with use emollients such as Vaseline. This can help by preventing external triggers from penetrating the skin.