Mykid L30.21

Acute, hyperergic hematogenous scatter reaction(Id reaction) in mycoses with the formation of symmetrical, maculo-papular, also dyshidrotic eruptions on hands and feet; also nodular and multiforme, more rarely pustular efflorescences, especially on the extremities and/or trunk. See also Id reaction, epidermophytid, trichophytid (Gorgievska-Sukarovska B et al. 2017).

Th1-mediated immune reaction that can occur as a "systemic remote reaction" to a (usually pronounced and prolonged), often inflammatory mycosis.

Mycides can also occur, for example, during the systemic treatment of tinea corporis (DD. drug-related exanthema).

In addition to maculo-papular and dyshidrotic lesions on the hands and feet, generalized, symmetrical, disseminated, small papular or papulovesicular, eczematous or lichenoid, follicularly accentuated exanthema (lichen trichophyticus) may also occur (Mayser P 2017).

Unusual and rare are erythema nodosum, erysipelas-like dermatitis, psoriasiform eruptions and multiforme exanthema, erythema exsudativum multiforme or erythema anulare centrifugum (see Mayser P et al. 2020).

Local anti-inflammatory therapy (mild glucocorticoid creams); oral therapy with glucocorticoids may be considered if clinical symptoms are pronounced. It is important to continue the consistent treatment of the underlying mycotic disease.

1. Gorgievska-Sukarovska B et al. (2017) Kerion Celsi due to Microsporum canis with a Dermatophytid Reaction. Acta Dermatovenerol Croat 25:151-154.
2. Mayser P (2017) Dermatophyte: Current situation. Dermatologist 68:316-323.
3. Mayser P et al (2020) S-1 guideline Tinea capitis. JDDG 18:161-181