Plants and the Skin Book

	Contributors
	Preface
	Acknowledgements
1	Introduction	1
2	The Individual at Risk	6
2.1	Occupational exposure to plants	6
2.2	Plant products in perfumes and cosmetics	15
3	Identification of Plants	23
3.1	The basics of plant taxonomy and nomenclature	23
3.2	Features used in plant identification	24
3.3	Collection of material for identification	25
3.4	Identification of plants	26
4	Urticaria Due to Plants	29
4.1	Introduction	29
4.2	Urticaria due to injection of toxins	29
4.3	Immunological contact urticaria	35
5	Irritant Plants	42
5.1	Mechanical irritants	43
5.2	Chemical irritants	50
6	Phytophototoxic Reactions	64
6.1	Introduction	64
6.2	The naturally occurring psoralens and other plant photosensitizers and their mode of action	66
6.3	Clinical features	78
6.4	Plants which cause phototoxic reactions	86
7	Allergic Contact Dermatitis Due to Plants	96
7.1	Mechanisms of allergic contact dermatitis	96
7.2	Patch testing with plants and plant allergens	97
7.3	Preparation of plant extracts	101
7.4	Poison ivy and poison oak dermatitis	105
7.5	Other plant families causing allergic contact dermatitis	121
7.6	Allergenic conifers	235
7.7	Allergenic hardwoods	246
8	Epilogue	255
8.1	Therapeutic uses of some plant products in dermatology	255
	Index	259