In terms of medico-legal advice, although the GMC makes it clear in its guidance that doctors mustnt use their professional position to pursue a sexual or improper relationship with a patient or someone close to them, it doesnt mention anything specific on hugging.

Is it right for doctors to feel for their patients?

Now, in a novel investigation in which physicians underwent brain scans while they believed they were treating patients, researchers have provided the first scientific evidence indicating that doctors truly can feel their patients pain — and can also experience their relief following treatment.