From an emotional direction, skin issues can be related to: "Failure to protect or be protected. Feeling irritated, angry, frustrated — like someone or something is getting under your skin. Disapproval, criticism, invalidation, or even hatred of self. Timid, withdrawn, insecure; feeling second best, devalued, uncomfortable in your own skin. Feeling like you don't belong and putting up barriers to guard yourself. (The Secret Language of your Body, Inna Segal)
So in terms of helping, you investigate which thought pattern and event could be behind this which may need some forgiveness and healing work to take place.
Skin is connected to the crown chakra:
http://laron.nz/seven-primary-chakras/#crown
From
my article:
"When the energy of the crown chakra is in an unhealthy state, issues that can arise are: depression, alienation, paralysis, genetic disorders, boredom, bone problems (including bone cancer), inability to learn, multiple sclerosis and amyotrophic lateral sclerosis.
Caroline Myss teaches that the following situations can all go towards creating energetic imbalances, which can manifest into health related problems:
- Not trusting the natural supportive processes of life.
- Having an absence of courage and faith.
- Living based on the energy of negative attitudes that prevent an individual from seeing opportunities for change.
- Fear of self-development including knowing oneself.
- Patterns of being selfish while not thinking beyond one’s personal needs."