LH: I’m sorry, anonymous, but the truth is … trainers are therapists for most pokémon. We’re supposed to be the ones to help pokémon heal from their past traumas through a combination of emotional support and raw love and patience. When it happens to a wild pokémon, there isn’t much help. This all is because although pokémon are largely sentient, they’re still in many ways animals, so the resources available to take care of them are very similar if not the same as the resources available to take care of our animal pets.
There is one option you might try, though: Nurse Joy. Unlike a vet for animals, Nurse Joys receive training in a pretty wide variety of fields, including some emotional therapy, and they’re open to making house visits to wild pokémon too. If someone hasn’t already, maybe ask your local Nurse Joy to go out to your guardian and give them a check-up and maybe a consultation.
Hoping the best for your guardian!