Angular rhinitis (inflamed, torn Corners of the mouth) - Angular cheilitis
Cold sore - Herpes labialis (due to the herpes simplex Virus (HSV) triggered
Tear - Rhagade
Lip red - Labium, pars intermedia
Lip skin - Labium, pars cutanea
Causes: A - Too little daily Fluid intake B - Stressful situations (Sympathetic nervous system is activated) C - vitamin deficiency, especially at Vitamin B2 and iron deficiency D - Extreme temperatures (very cold or high temperatures) E - infections especially of Herpes Simplex Virus (HSV) F - common cold - cold weather deprives of the skin (epidermis) Humidity G - Frequent use of the Lip care products leads to Habituation effect H - As a side effect of a Chemotherapy (drug Treatment of cancer)
You can find an overview of all Dr-Gumpert images at medical illustrations