dyshidrosis

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dyshidrosis

 [dis-hĭ-dro´sis]
1. any disorder of the eccrine sweat glands.
2. former name for pompholyx.

dys·hi·dro·sis

(dis-i-drō'sis),
A vesicular or vesicopustular eruption, of unknown cause, chiefly involving the volar surfaces of the hands and feet; self-limited but may be recurrent.
[dys- + G. hidrōs, sweat]

dyshidrosis

/dys·hi·dro·sis/ (dis″hĭ-dro´sis)
2. any disorder of eccrine sweat glands.

dyshidrosis

[dishīdrō′sis]
Etymology: Gk, dys, difficult + hidros, sweat
any disorder of the eccrine sweat glands. Also spelled dyshydrosis.

dys·hi·dro·sis

, dysidrosis (dis'hi-drō'sis, dis'i-)
A vesicular or vesicopustular eruption of multiple causes that occurs primarily on the volar surfaces of the hands and feet; the lesions spread peripherally but have a tendency to central clearing.
Synonym(s): cheiropompholyx.
[dys- + G. hidrōs, sweat]

dyshidrosis

Any anomaly of sweat production or release.

dyshidrosis

abnormal sweat flow (see Table 1and Box 1)
Table 1: Treatment of hyperhidrosis and bromidrosis
Treatment rationaleModality
Reduction of local sweat flowTreatment of painful conditions (orthoses, footwear, correction of chronic foot strain)
Determination whether there is a systemic cause of increased sweating (e.g. hyperthyroidism; menopause; stress)
Prevention of sweat accumulation at skin surfacePersonal hygiene (washing, rotation of shoes, clean socks; use of antiperspirants; contrast foot baths)
Airing feet (sandals; cotton not nylon hose; leather not plastic shoes)
Absorbents (charcoal-containing insoles; allowing shoes to air thoroughly between wearing
Note: Foot powders do not absorb sweat, but do lubricate the skin
Reduction of the local effects of macerationTopical astringents
Counteraction of proneness to fungal and bacterial infectionsTopical antiseptics and fungicides
Treatment of associated minor skin pathologies• Blistering: weak iodine solution; 50:50 weak iodine and compound tincture of benzoin (TBCo); TBCo
• Moist fissuring: TBCo with 3% salicylic acid; industrial methylated spirit (IMS) with 3% salicylic acid
• Dry fissuring: reduction of local callosity; application of emollients
Box 1: Treatment of anhidrosis
  • Gentle massage to stimulate skin blood flow

  • Daily application of an emollient or hydrating cream

  • Reduction of hyperkeratosis/parakeratosis (scalpel, sanding disc, topical keratolytic)

  • Associated fissuring: reduction of local hyperkeratosis; topical ichthammol 12% in collodion, ichthammol in glycerin ± overlying tension strapping

  • Associated fungal infection: see Table 2

Table 2: Treatment of fungal infections of skin and nails
Infection siteAgent
Antimycotic agent (for the treatment of dermatophytosis)
SkinTopical allylamine (e.g. 1% terbinafine cream for 7 days)
Topical imidazoles (e.g. 2% miconazole or 1% clotrimazole for 28 days)
Topical 0.25% amorolfine
Topical 1% econazole
Topical griseofulvin spray (400 μg puff daily for 14 days)
Topical 1% sulconazole
Topical tea tree (manuka) oil
Topical undecenoate (20% zinc undecenoate + 5% undecenoic acid)
Topical Whitfield's ointment (6% benzoic acid + 3% salicylic acid)
Other topicals include: weak iodine solution 2.5%; potassium permanganate paint 1%; salicylate acid cream or alcoholic solution 3-5%; benzoic acid (Whitfield's) ointment; sodium polymetaphosphate dusting powder
Systemic terbinafine (250 mg daily for 2 weeks)
Systemic itraconazole (100 mg daily for 15 days)
Systemic griseofulvin (500 mg daily )
NailTopical amorolfine 0.25% lacquer as an adjunct to systemic treatment
Topical borotannic acid complex acid; Phytex paint (1.46% salicylic acid + 4.89% tannic acid + 3.12% boric acid)
Topical 28% tioconazole lacquer
Topical undecenoate lacquer; Monphytol paint (5% methyl undecenoate + 0.7% propyl undecenoate + 3% salicylic acid + 25% methyl salicylate + 5% propyl salicylate + 3% chlorambucil)
Other topicals: strong iodine 10% solution
Systemic terbinafine (250 mg daily for 12-16 weeks)
Systemic itraconazole (400 mg for 1 week in a month, repeated overall 3 or 4 times)
Anticandidal agent (for the treatment of candidiasis)
SkinTopical antimycotic creams (1% clotrimazole; 1% econazole; 2% miconazole)
Topical nystatin (100 000 units ± 1% tolnaftate)
Antipityriasis versicolor agent (for the treatment of pityriasis versicolor)
SkinTopical 2% ketoconazole
Topical 2.5% selenium sulphide
Topical antimycotic agents (1% clotrimazole; 1% econazole; 2% miconazole; 1% sulconazole; 1% terbinafine)
Systemic fluconazole/itraconazole/ketoconazole/miconazole/voriconazole

dyshidrosis

any disorder of the eccrine sweat glands.