Increasing global pollution, especially in urban environments, and the fact that more and more people are affected by allergic reactions, has led to a growth in hypersensitive skin.
Triggers can differ from person to person so it can be a good idea to keep a diary of environmental, psychological, external and mechanical factors to try to identify the ones that cause reactions.
Further triggers highlighted by sufferers include harsh chemicals (e.g. surfactants like SLS, SLES), certain preservatives and alcohol as well as plasters, paper tape and herbs. Some also report hormonal factors such as the menstrual cycle.
Certain fabrics, dyes and chemicals that are impregnated into clothing can also have a negative effect on hypersensitive skin. Synthetic and non-iron materials in particular contain a variety of chemicals such as formaldehyde which can trigger skin irritation and allergies.