The most extreme form is called severe cystic acne.
Acne is the medical term meaning inflammation of the sebaceous follicles.
Acne
A skin specialist is a "dermatologist".
Objective is the medical term meaning without emotion.
Acne is the medical term meaning the condition of pimples. Pimples may be pustules, papules, or comedones.
Xerosis
Hypersomnia means too much sleep. Hypersomnia can be a symptom of depression.
Hirsutism is the condition of abnormal hairiness.hirsutism, or (in the extreme) hypertrichosis
The medical term for a fatty deposit under the skin is lipoma.cellulite
Syncope is the medical term meaning fainting.
Anacusis is the medical term meaning complete deafness.
Knots on the head could be acne pimples on the scalp or elsewhere on the head. They could also be insect bites.