Q&A: Old client – new chart?

Marcos and Olly respond to a student question about decumbitures (illness charts) or consultation charts – when a client or patient returns after a hiatus, do you need to make a new chart? And – when should the birth chart be used instead? Our school of astrology for herbalists, therapists, medics and those who like a bit of magic in their medicine: https://plantarium.uk/