pediatrician, neurologist
Hello! You need to contact a dermatologist and endocrinologist. I would advise you to take a blood test for thyroid hormones: T3, T4 (free), TSH.
Also drink vitamin-mineral complexes, for example, supradin, but they must contain vitamins A and E.
Lubricate the skin on the hands with acryderma, and for the lips you can buy hygienic lipstick.