welcome to healthcare magic forum
thank you for your query
main and common reason for her problem is dry and sensitive skin .
when skin become more dry it break down and paper cuts develop and are very painful
she need to apply good moisturizer cream and antibiotic over cuts
in severe case steroid
is very helpful
she need to consult dermatologist
for proper treatment
in many case we can not sure the disease ,but can control it .
i hope i answered your question