A poultice or cataplasm, also called a fomentation, is a soft moist mass, often heated and medicated, that is applied to the skin to reduce
inflammation
Inflammation (from ) is part of the biological response of body tissues to harmful stimuli, such as pathogens, damaged cells, or irritants. The five cardinal signs are heat, pain, redness, swelling, and loss of function (Latin ''calor'', '' ...
, soothe
pain
Pain is a distressing feeling often caused by intense or damaging Stimulus (physiology), stimuli. The International Association for the Study of Pain defines pain as "an unpleasant sense, sensory and emotional experience associated with, or res ...
, promote healing, or otherwise treat wounds or ailments. Soft materials like cereals are used as a base, to which agents intended to affect the body,
transdermally, may be added. The preparation is usually spread on cloth, which is then applied to the body part to be treated. The cloth is used to keep the preparation in place, or additional bandaging to hold the poultice may be employed. Direct topical application (without cloths) is also used.
Poultice may also refer to a porous solid, filled with a solvent used to remove stains from porous stone such as
marble
Marble is a metamorphic rock consisting of carbonate minerals (most commonly calcite (CaCO3) or Dolomite (mineral), dolomite (CaMg(CO3)2) that have recrystallized under the influence of heat and pressure. It has a crystalline texture, and is ty ...
or
granite
Granite ( ) is a coarse-grained (phanerite, phaneritic) intrusive rock, intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly coo ...
.
The word ''poultice'' comes from the Greek word transformed to the , , '
porridge'.
History
Asia
North America
* Native Americans have thousands of plants for the making of poultices.
Preparation and composition
* Some
Native Americans used
mashed pumpkin or
devil's club as a poultice.
* In addition to bread and cereals,
bran
Bran, also known as miller's bran, is the component of a Cereal, cereal grain consisting of the hard layersthe combined aleurone and Fruit anatomy#Pericarp layers, pericarpsurrounding the endosperm. Maize, Corn (maize) bran also includes the p ...
may also be used as a poultice because of its absorbent quality. It is packed into the wound and then covered with a piece of sacking or similar material before being bandaged onto the site of the wound.
* There are also many commercial poultices that are ready-made. Some of these may be labeled as "
drawing salves".
* Ash poultices can cause a
chemical burn.
Types
Fomentationsheated poulticesmay be used to promote blood circulation to an affected area; these may be unmedicated.
Cold poultices are sometimes used. An example is the use of
cabbage leaves to reduce
breast engorgement in breastfeeding mothers. The leaves are applied directly to the breast, often simply held in place by a bra. Evidence for effectiveness as a treatment is weak: cabbage poultices are about as effective as the frequent, unrestricted feeding of the infant; they have no effect on the rate of progression to
mastitis. There is some slight evidence that cabbage poultices reduce the pain of engorgement.
Veterinary use
Poultices are used on
horse
The horse (''Equus ferus caballus'') is a domesticated, one-toed, hoofed mammal. It belongs to the taxonomic family Equidae and is one of two extant subspecies of ''Equus ferus''. The horse has evolved over the past 45 to 55 mi ...
s to relieve inflammation. Usually applied to the lower legs, under a
stable bandage, to focus treatment on the easily injured tendons in the area. Poultices are sometimes applied as a precautionary measure after the horse has worked hard, such as after
racing
In sports, racing is a competition of speed, in which competitors try to complete a given task in the shortest amount of time. Typically this involves traversing some distance, but it can be any other task involving speed to reach a specific g ...
,
jumping, or
cross-country riding, to forestall strains or stiffness. They may be used to treat
abscesses, with the intention of drawing out pus from the wound.
Cooling poultices are sometimes used for show-jumpers and
racehorses; these may be cheaper and easier to administer than commercial cooling products. A poultice is applied to the horse's distal limbs after exercise, for 9–12 hours. The intended effect is to cool the legs over a long period of time, by dispersing heat from the limb through the action of evaporation. Commonly, the poultice is bandaged over, sometimes with materials such wet newspaper between the poultice and bandages; this greatly reduces evaporation and heat loss, rendering the poultice ineffective at cooling.
References
Further reading
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External links
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{{Authority control
Medical treatments
Equine injury and lameness