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''Swedana'' (sudation) is a process in which the individual is subjected to therapeutic sweating. It is considered an essential prerequisite to [[Panchakarma]] (purification therapy involving five procedures) in  Ayurveda and is secondary to ''snehana'' (oleation) in importance. When done without ''snehana'', it is called ''ruksha sweda'' (dry fomentation). ''Swedana'' is intended to remove excessive ''vata'' and ''kapha dosha'' and is contraindicated in ''pitta'' disorders. The extent and severity of ''swedana'' depends upon various factors such as physical strength, amount of ''dosha'', season, site, age etc. There are specific indications and contraindications for ''swedana karma'' and the optimal signs should be strictly followed for the procedure. There are many agents to induce sweating which can be broadly divided into ''sagni sweda'' (sweating induced with the help of fire) and ''niragni sweda'' (induced without using fire). Bolus fomentation, steam fomentation, tub fomentation and poultice fomentation are some of the very common types of ''swedana'' procedures. There are thirteen varieties of fomentations (prevalent in the olden days) that involve direct usage of heat derived from fire, and ten methods without fire. ''Swedana'' is an effective therapeutic method in  Ayurveda and is the focus of study in this chapter.

''Swedana'' (sudation) is a process in which the individual is subjected to therapeutic sweating. It is considered an essential prerequisite to [[Panchakarma]] (purification therapy involving five procedures) in  Ayurveda and is secondary to ''snehana'' (oleation) in importance. When done without ''snehana'', it is called ''ruksha sweda'' (dry fomentation). ''Swedana'' is intended to remove excessive ''vata'' and ''kapha dosha'' and is contraindicated in ''pitta'' disorders. The extent and severity of ''swedana'' depends upon various factors such as physical strength, amount of ''dosha'', season, site, age etc. There are specific indications and contraindications for ''swedana karma'' and the optimal signs should be strictly followed for the procedure. There are many agents to induce sweating which can be broadly divided into ''sagni sweda'' (sweating induced with the help of fire) and ''niragni sweda'' (induced without using fire). Bolus fomentation, steam fomentation, tub fomentation and poultice fomentation are some of the very common types of ''swedana'' procedures. There are thirteen varieties of fomentations (prevalent in the olden days) that involve direct usage of heat derived from fire, and ten methods without fire. ''Swedana'' is an effective therapeutic method in  Ayurveda and is the focus of study in this chapter.

'''Keywords''': ''Avagaha sweda,'' fomentation,  ''jentaka sweda, nadisweda, niragnisweda, ushmasweda,  pottalisweda, ruksha sweda, sagnisweda, sankarasweda, samyakswinna lakshana, snigdha sweda, sudation swedana, swedatiyoga, swedayoga trayodasha sweda, upanaha sweda,'' fomentation, heat, sudation therapy.

'''Keywords''': ''Avagaha sweda,'' fomentation,  ''jentaka sweda, nadi sweda, niragni sweda, ushma sweda,  pottali sweda, ruksha sweda, sagni sweda, sankara sweda, samyak swinna lakshana, snigdha sweda, sudation swedana, swedatiyoga, swedayoga, trayodasha sweda, upanaha sweda,'' fomentation, heat, sudation therapy, hydrosis.

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