The impact of external factors on psoriasis

Figures & Tables

Clothing	avoiding clothes made of artificial fabrics that strongly compress and rub the skin (underwear, socks, belts)natural materials, airy (cotton), not disturbing sweatingnon-irritating jewelry
Beauty treatment	avoiding shaving with blunt shavers of facial hair and other hairavoiding wax depilationresignation from piercing, tattooing, permanent makeupavoiding hybrids and acrylics; nails should be short, evenly cutshort or semi-long haircuts, resignation from dreads and attachmentsavoiding intensive lightening or dyeing hair, keratin treatments, permsavoiding Chinese cupping massage
Medical treatments	during active illness, avoiding needle aesthetic procedures or laser dermatology (pulsed dye laser, high-energy irradiation)resignation from acupuncture
Climatic factors	despite reported improvement of the disease after sun exposure, it is advisable to avoid intensive sunbathing, sunburnprotection against frostbite
Occupational factors	career counselingavoiding contact with irritants and allergensthe use of suitable gloves and tool protection to reduce mechanical injury or frictionskin care program and barrier creams

A component of emollients	Importance	Substances
Occlusive substances	Prevention of water loss through evaporation	Hydrocarbon oils (petrolatum, paraffin, mineral oils)Polyhydric alcohols (propylene glycol)Fatty alcohols (cetyl, stearyl, lanolin)Fatty acids (stearic, lanolin)Phospholipids (lecithin)Wax esters (lanolin)SterolsWaxes
Humectants	Binding of water molecules and retention within the stratum corneum	Glycerin (2–10%)Urea (2–5%)SorbitolLactic acidPropylene glycolLactatesHydroxy acidsHyaluronic acid
Physiological epidermal lipids	Regulation of normal corneocyte differentiation	Unsaturated fatty acidsCholesterolSqualenes, PhospholipidsSterolsCeramides