how best to handle medical resources Metal Gear Survive

is there a way to get automatic? Or am I just supposed to spend plants I find and such?

Eventually you'll be able to establish farms for medical resources, but in the beginning you pretty much have to scrounge them up. Once you have a farm going you shouldn't have to worry about mutualization that much, mine pretty much always sits at maximum.

Until then, sharing cotton fabric is plentiful and does the job. You can also directly cure your team's illnesses from the menu so they'll stop using up medical resources.