In relation to the daily pace and nature of symptoms, according to studies Llewis Lamey, Basker et al. can be classified into three types:

Type 1: It is characterized by the absence or minimal symptoms on waking, increasing progressively worse during the day at dusk and at night. It is observable in 65% of patients. He was associated with psychological factors do not.

Type 2: The patient wakes with significant discomfort and persist throughout the day. It is observable in 26% of patients. It relates to people with chronic anxiety.

Type 3: Burning flashing at any time of day and can even refer hassle-free days. Observed in 10% of patients. It relates to certain psychopathology and to a lesser extent with allergic causes.

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