Interviewing both child and parent separately allows for the clinician to compile different points of view and information.Commonly used interviews include:
Anxiety Disorders Interview Schedule for the DSM-IV, Child Parent Versions (ADIS-IV-C/P)
Diagnostic Interview Schedule for Children, Version IV (DISC-IV)
Schedule for Affective Disorders and Schizophrenia for School-aged Children-Present and lifetime version IV (K-SADS-IV)

Self-report measures
This form of assessment should not be the sole basis of a SAD diagnosis. It is also important to verify that the child who is reporting on their experiences has the cognitive and communication skills appropriate to accurately comprehend and respond to these measurements. An example of a self-report tool that has been tested is: The Separation Anxiety Assessment Scale for Children (SAAS-C). The scale contains 34 items and is divided into six dimensions. The dimensions in order are:  Abandonment, Fear of Being Alone, Fear of Physical Illness, Worry about Calamitous Events, Frequency of Calamitous Events, and Safety Signal Index. The first five dimensions have a total of five items while the last one contains nine items. The scale goes beyond assessing symptoms; it focuses on individual cases and treatment planning. Observation
As noted by Altman, McGoey & Sommer, it is important to observe the child, "in multiple contexts, on numerous occasions, and in their everyday environments (home, daycare, preschool)".
This observation is supported by the fact that most patients live at high altitudes (>1000 m above sea level), and the condition improves in many patients when they move to lower altitudes. However, some patients who are affected already live at sea level.18,19,27 •Some authors are considering a food photosensitizer or a nutritional selective deficiency as a cause; however, no evidence proves this theory.27

Treatment
Currently there is no cure for actinic prurigo, and treatment focuses on relieving the dermatologic symptoms, by way of topical steroid creams or systemic immunosuppressants. Prescribed treatments include:

topical creams such as Tacrolimus and Betamethasone. systemic immunosuppressants such as Prednisone. In some cases, Thalidomide has proven to be effective in controlling the symptoms of actinic prurigo.All patients with AP are encouraged to minimize sun exposure, and to use strong sunscreen throughout the year, and even on cloudy or overcast days, as UVA light, unlike UVB light, is able to penetrate cloud cover and remains constant throughout the day. Alternative treatment methods might include UV Hardening, Meditation and/or cognitive behavioral therapy. UV-A desensitization  phototherapy has also been shown to be effective in cases. History
Actinic prurigo (AP) was first described by Escalona in Mexico, in 1954. See also
Photosensitivity with HIV infection
List of human leukocyte antigen alleles associated with cutaneous conditions
Hydroa vacciniforme

References
External links
http://dermnetnz.org/reactions/actinic-prurigo.html
Actinic Prurigo at eMedicine
Torres-Alvarez, B; Baranda, L; Fuentes, C; Delgado, C; Santos-Martinez, L; Portales-Perez, D; Moncada, B; Gonzalez-Amaro, R (January 1998). "An immunohistochemical study of UV-induced skin lesions in actinic prurigo. Resistance of langerhans cells to UV light". European Journal of Dermatology.