I believe you may be looking for the word "subdermal" or "intradermal"
The medical term for any swelling is called a lump
"Cutaneous" is the medical term that means pertaining to the surface of the skin.
Dermatologis means pertaining to dermatology, treatment of the skin.
In the term "subcutaneous", the prefix "sub" means "under" or "below". A standard prefix in English, "sub" derives most immediately from Latin and is also found in such common terms as "subterranean", "substitute", "submarine", and "substandard", among many others.
Dermal
Epidermal means pertaining to upon the surface of the skin.
The word is "dermatology" from the root derm or derma, meaning skin. Dermatology is the branch of medicine that is concerned with the physiology and pathology of the skin.
Hypodermic means under the skin. Hypo means under, dermis (dermic) means skin. Like a hypodermic needle is inserted under the skin.
The three word parts in "intradermal" are "intra" meaning "within," "derm" meaning "skin," and "al" meaning "pertaining to."
The prefix is sub- (meaning underneath or below), the suffix is -ous (meaning to pertain to) and the root word is -cutane- meaning skin. The word subcutaneous means pertaining to beneath the skin.
This would be icteric, meaning pertaining to icterus.
The root of "hypodermic" comes from the Greek words "hypo" meaning under, and "derma" meaning skin. Together, it refers to something that is injected under the skin.