Milia develop when dead skin cells build up behind the surface of new skin. The dead skin cells become trapped and solidify, forming a ‘milium’. This can be triggered by damage to the skin, such as:
- Rash, injury, burns or blisters
- Long-term usage of topical steroid
- Long-term sun exposure or porphyria cutanea tarda (PCT)
- Epidermolysis bullosa (EB)
- Skin resurfacing procedures
- An autoimmune condition
- Genetics
- Auto-immune disease e.g. cicatricial pemphigoid or