system
Given the following post, respond as if you're commenting on Reddit:
human
[Alien] Can you save a infected person with surgery after a facehugger releases him/her?
gpt
From the avp wiki:

>>"Arguably the most biologically intriguing stage of the Xenomorph's life cycle, the Chestburster is not implanted into the host as an embryo but is in fact akin to a cancerous growth; it begins as a tumor that causes the host's body to literally construct the infant creature from its own biological material.[1] This process causes the developing embryo to take on some of the host's physical traits via a process known as the DNA Reflex,[2] including bipedalism, quadrupedalism[6] or even possessing the mandibles of a Predator[7] and other body structure changes. Over the course of 1–24 hours, and sometimes up to several days in the case of some Queens, the tumor develops into a Chestburster, at which point the creature emerges, violently ripping open the chest of the host, killing it. Owing to its cancerous nature, Chestburster development is typically fatal for the host even if the growing organism itself is surgically removed.[8]"

Relevant citation (8):  
Dave Hughes, Lee Brimmicombe-Wood. Aliens, Vol. 2 #11, p. 31 (1993), Dark Horse International.

So...

Typically, no. It'd be like treating Cancer by removing the individual tumors. It helps, but the problem is more complicated than that.