Question about Personal Care practice (massage, aromatherapy, Reiki, HT, etc)?

Can you answer blznsun2004’s question about Massage?:

As a personal care business (massage, aromatherapy, etc) do you need to have a Fictitious Name registered with the state, occupational license, etc? If I am only taking cash for the exchange of services and I travel to their homes it doesn’t seem like I would need to have those things, but I am not sure. Does anyone know? Please advise, I am building a practice and I want to have my ducks in a row so to speak.

Thank you in advance!

Ergonomic Massage Table