These symptoms may range from mild to debilitating. Exposures may cause symptoms in one or several body symptoms. Those with chemical sensitivities may have asthma, upper respiratory problems, migraines, and other problems triggered by chemical exposures. The mechanisms by which chemical sensitivities occur is not known. Onset may be related to a definite high level chemical exposure or to long term low level exposures.
Some people never know what triggered their chemical sensitivity.
It is often very difficult to work in environments where there is exposure to fragrances and other irritating chemicals. Dermatitis Dermatitis can occur from exposure to fragranced products. Fragrance found in soaps, cleaners, and other products in the workplace may cause problems. Fragrances used by others can also cause problems for the person with dermatitis. Fragrance on the hands and clothing of others can be transferred to surfaces which the fragrance sensitive person may have contact with.