Pandirna isn't a character that every campaign will run across, but encountering her can lead to some interesting choices in Act 1 of the game. One of the tieflings that can be found in Druid Grove, Pandirna isn't easy to stumble upon in the way that most of the refugees are. Instead, she can be found inside a locked hut, which requires a bit of sneaking to enter without triggering any onlookers or guards. The tiefling is guarding a chest inside, although all she can really do to guard it is slump against the side.
Pandirna is in need of help, as a potion that she took turned out to be some kind of paralyzing agent. As this encounter typically first occurs when the party is still fairly low-level, the means to assist her might not be entirely obvious or convenient. It's consequently hard to determine whether going through the trouble of uncovering a solution will be worth it, and Pandirna doesn't offer any indication of a clear reward. For an altruistic party, the mere desire to help might be enough, but looking into the circumstances helps clear up the choice for others.
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If a party doesn't want to help Pandirna for the sake of it, it's probably not particularly worth doing. The bottom line is that Pandirna doesn't offer any specific reward for being cured aside from a simple thanks, which doesn't hold quite the same value as legal tender in the world of When so many other quests in the game do offer rewards for helping other people, including powerful magical items and large piles of gold, spending time or resources on one that isn't necessarily worth the hassle.
There also isn't much narrative reward for helping Pandirna, as the event doesn't appear to lead to anything else
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