There are factors that influence crevice corrosion. 1  These include: 2  The type of crevice: either metal to metal or metal to nonmetal. 3  The geometry of the crevice: including the size of the gap, its depth and the surface roughness. 4  The composition of the metal: the structure of the alloy composition and can be Cr, Mo, or others.
1 Allergies - Allergic reactions can lead to leaks in the subcutaneous capillary beds which can cause swelling in the face, including around the eyes.  Skin disorders - Eye puffiness can be a side effect of certain skin disorders, such as dermatitis, if the affected area becomes very sensitive, leading to swelling.
This then creates a kind of gap in the skin layers, which leads to different amounts of swelling or puffiness during different times of the day or month. Considering the cause of festoons, you can understand how eye creams, gels and other external treatments are completely ineffective.