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There are more than one type of dermatitis, but they all have one thing in common.

Dermatitis = Derm (skin) + Itis (inflammation)
Common symptoms: redness, itching, blisters, peeling
Types include: contact dermatitis, atopic dermatitis, seborrheic dermatitis, candidal dermatitis, psoriasis, eczema, leukoderma, alopecia, etc.
They have different names, but they are essentially both cases of an overreaction of the immune system.

👉 Skin problems = overreaction of the immune system

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💊 Traditional treatment = Suppressing immunity + Killing bacteria

Steroids (topical/oral) → Suppress immune response
Antibiotics kill bacteria, but may lead to fungal/yeast overgrowth.
Epidermal microbiota = symbiotic relationship → disruption of this relationship makes secondary infections more likely.

👉 Suppression is not the same as repair; it may actually worsen the situation.

🧬 Skin immune system = surface + subsurface double defense

Surface layer: Microbiome → Maintains balance and prevents problems
The bottom layer: lymphatic tissue + immune cells → ready to fight at any time.
Once the balance is disrupted → the immune system overreacts → inflammation/redness/itching

👉 Maintaining the skin's microbiome is a key line of defense.

☀️ Vitamin D = The Real Solution to Dermatitis

Regulates the immune system → reduces histamine response (relieves itching)
Inhibiting mast cells → reducing urticaria/contact dermatitis
Winter/High stress → Decreased Vitamin D → Worsening of dermatitis
Acne (sebaceous glands) → Vitamin D can shrink sebaceous glands and regulate secretion.
Seborrheic dermatitis (dandruff) → Vitamin D cream is effective
Eczema, psoriasis, vitiligo, and alopecia are all related to vitamin D deficiency .

👉 Vitamin D = Commander-in-Chief of the Immune System

🦠 How do microorganisms disrupt vitamin D function?

Certain bacteria/fungi can inhibit vitamin D receptors in the skin , thus preventing vitamin D from functioning.
Vitamin D deficiency → dry skin + dehydration
Vitamin D can promote melanin production ; deficiency can easily lead to vitiligo.
Vitamin D has antifungal properties → inhibits growth + prevents biofilm formation (microbial protective shell).

👉 Microbes can avoid Vitamin D → so you need to supplement enough.

🧾 In conclusion: Don't assume that "dermatitis = applying medication" anymore; it's actually caused by "immune imbalance + vitamin D deficiency".

Starting today, we'll provide you with a targeted vitamin D supplementation strategy, a skin immune repair program, and a skin reboot plan based on the gut microbiome to lay a solid foundation for your skin!