CBT may help prevent persistence of iatrogenic symptoms – those that occur because health care providers create the expectation that they will. A risk exists that the power of suggestion may worsen symptoms and cause long-term disabilities; therefore, when counseling is indicated, the therapist must take a psychological origin of symptoms into account and not assume that all symptoms are a direct result of neurological damage from the injury.In situations such as motor vehicle accidents or following a violent attack, the post-concussion syndrome may be accompanied by posttraumatic stress disorder, which is important to recognize and treat in its own right. People with PTSD, depression, and anxiety can be treated with medication and psychotherapy. Upper cervical care
Post-concussion syndrome can sometimes be the result of a misalignment in the upper cervical spine (neck) specifically the C1 (Atlas) or C2 (Axis) which surround the brain stem. Some individuals have found relief through upper cervical care. An upper cervical chiropractor is a specialist who uses x-rays to identify misalignments in the upper cervical spine then gently repositions the top two bones of the neck. There are currently approximately seven different chiropractic methods of repositioning the C1 bone, however the three most popular techniques are NUCCA (adjustment done by hand), Blair Technique (adjustment done by hand), and Atlas Orthogonal (adjustment done by a machine). Education
Education about symptoms and their usual time course is a part of psychological therapy, and is most effective when provided soon after the injury.
: 763 
Keratoacanthoma centrifugum marginatum is a cutaneous condition, a variant of keratoacanthomas, which is characterized by multiple tumors growing in a localized area. : 763 : 645 
Multiple keratoacanthomas (also known as "Ferguson–Smith syndrome," "Ferguson-Smith type of multiple self-healing keratoacanthomas,") is a cutaneous condition, a variant of keratoacanthomas, which is characterized by the appearance of multiple, sometimes hundreds of keratoacanthomas. : 763 : 644 
A solitary keratoacanthoma (also known as "Subungual keratoacanthoma") is a benign, but rapidly growing, locally aggressive tumor which sometimes occur in the nail apparatus. : 667, 764 : 644 
Generalized eruptive keratoacanthoma (also known as "Generalized eruptive keratoacanthoma of Grzybowski") is a cutaneous condition, a variant of keratoacanthomas, characterized by hundreds to thousands of tiny follicular keratotic papules over the entire body. : 763  : 645  Treatments are not successful for many people with generalized eruptive keratoacanthoma. Use of emollients and anti-itch medications can ease some symptoms. Improvement or complete resolutions of the condition has occurred with the application of the following medications: acitretin, isotretinoin, fluorouracil, methotrexate, cyclophosphamide. Cause
Keratoacanthomas usually occurs in older individuals. A number of causes have been suggested including ultraviolet light, chemical carcinogens, recent injury to the skin, immunosuppression and genetic predisposition. As with squamous cell cancer, sporadic cases have been found co-infected with the human papilloma virus (HPV). Although HPV has been suggested as a causal factor, it is unproven.Many new treatments for melanoma are also known to increase the rate of keratoacanthoma, such as the BRAF inhibitor medications vemurafenib and dabrafenib. Diagnosis
Keratoacanthomas presents as a fleshy, elevated and nodular lesion with an irregular crater shape and a characteristic central hyperkeratotic core.