This benign condition is called hemangioma and can be found on newborns as well. They are soft, raised, red benign tumors which involve only the capillaries.
Paget's disease is a rare type of breast cancer sometimes mistaken for nipple eczema.
Eczema usually occurs in those with allergic tendencies and is triggered by environmental factors.
A herpes lesion would present as either a blister or a sore once the blister has burst.
Mohrbacher 2020 733; Wambach 2016 p. 794; Wambach 2021 p. 232