Last Updated: 2023-07-07
Author(s): Anzengruber F., Navarini A.
Secondary reactions to fungi (trichophytes, epidermophytid, microsporid) in hyperergic immune state.
In the case of dermatophyte infection, an antigen resorption and finally an antigen-antibody reaction occur in a hyperergic immune situation. From an immunological point of view, this is a type IV reaction. The Id reaction usually occurs far from the focus.
Dyshidrosiform, nodular or multiforme erythema, usually on the extremities.
Lichen trichophyticus is a special form: This is a symmetric, disseminated seeding of follicular papules localised to the trunk.
Immune testing is not recommended.
Very good if the causative mycosis is treated effectively.
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