LeWitt et al reported consensus criteria for a flare in patients with hidradenitis suppurative (HS).  Gaining consensus in hidradenitis suppurativa has proven to be a challenge. The autors are from multiple institutions in the United States and Europe.

Patient selection: hidradenitis suppurative (HS)


Criteria for flare of hidradenitis suppurativa - one or both of the following:

(1) new onset of clinical signs or symptoms (including appearance of a new lesion or reactivation at the site of a prior lesion)

(2) substantial worsening of clinical signs or symptoms with regards to existing lesions


Signs or symptoms include:

(1) pain

(2) draining

(3) subcutaneous abscess


Some suggested that the changes should be viewed as significant by the patient.

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