A Positive 1:40 ANA titre is actually considered...negative.
Most specialists won't use ANA titres below 1: 160 or even 1:320, since they are of poor diagnostic value at those levels.
Try coconut oil, Nigella sativa seeds and/or Nigella sativa oil, which all have
numerous medicinal properties including antimicrobial, antifungal, antiviral
and antiparasitic effects.
Best wishes,
Niko