What negative emotion are mostly investigated in skin disorders

Results showed that the study of emotions in skin disease is limited to Sadness/depression and Fear/anxiety.

The emotions of Anger and Disgust have been poorly explored in empirical studies, despite they could be theoretically considered a vulnerability factor for the development of skin disorders and the dermatological extreme consequences, as negative emotionality toward self and the pathological skin condition

Mento C, Rizzo A, Muscatello MRA, Zoccali RA, Bruno A. Negative Emotions in Skin Disorders: A Systematic Review. Int J Psychol Res (Medellin). 2020 Jan-Jul;13(1):71-86. doi: 10.21500/20112084.4078. PMID: 32952965; PMCID: PMC7498125.