Investigations are aimed at trying to find an associated condition such as sarcoidosis, streptococcal infection, or viral causes.
The disease tends to be self-limited. Treatment should be aimed at relieving the underlying associated disease and supportive therapy, including bed rest and avoidance of contact irritation of affected areas (1).
The condition may take weeks to regress (generally resolves within six weeks) and there may be recurrent attacks.
Reference:
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