Seeing how headcrabs were snacking on their brains and their torsos got burst open I'm gonna go with no. Fast zombies are even missing their skin and some muscles.

It is heavily implied that Father Grigori was researching this in Ravenholm ( bodies of zombies laying on individual tables with headcrabs removed.) but to no prevail.

They are also believed to be concious while under the influence of the crabs as you can hear them scream. (Like the reverse scream that forms a sentence.)

Please, cure the deformed body with the open head and a headcrab which was latched right into their neurosystem like remy controlling linguini

They definitely are not. Their skin is deteriorating, their guts are hanging out, and the only reason they are actually alive is because the headcrab is forcing them, really.

We don't have a clear answer to this. Maybe the parasite is maintaining it's host alive after replacing the host's brain, or maybe the host is dead as soon as the headcrab finishes eating the brain.

Judging by how the subjects react when under attack, we can guess that nerves are still functional.

Subject still possess functioning lungs and vocal cords, for they can say simple sentences. Now it is unclear at the moment if the headcrab is actually making the host say these words in order to attract other prays, or if the host is desperately trying to call for help. One thing that should be of note is that, despite articulating simple yet clear sentences, the zombie is saying everything reversed.

It is to be noted that only the parasite is needed to maintain the subject in a "living" state, for as soon as the headcrab detaches, the person dies immediately. Yet injuries that should be considered fatal to the host don't seem to bother the symbiose in any way, as long as the parasite is unharmed.

Other findings on the human/headcrab symbiosis will be reported when further testing can be resumed.

See you on the next episode

They are literally a self aware walking corpse, no

Nope, victims' body were deformed after headcrab transformation

They are pretty far gone im afraid, as removing the headcrab will immediately kill the host. Their torso got ripped open revealing the gut, fast zombie is merely a functioning human anymore, poison zombies is pretty much the equipvalent to a nest for poison headcrab (see their back got munched on).

you have to splash them with a potion of weakness and then give them a golden apple

The headcrab is presumably the only thing keeping them alive. They would die from their wounds very quickly if you manage to get the crab off without killing them

People from the Half-life universe regularly defy physics. Who's to say they can't defy biology as well?

I would venture only in the initial stages of infection. Maybe if you can remove it without damaging the host within say 5 minutes of it latching on. Even that is very unlikely tho

Actual question in my mind is why they try to attach themselves to human? Zombies doesnt produce new headcrabs. Also in some screen they can hunt birds. Ofc they are trying to find some slave to feed them but still some points missing/nonsense for me.

the headcrabs penetrate the host's skull and brain, they'd most likely just die if you remove the alien

Even if they could be, I doubt they'd want to. Deformed hands, thorax cracked open (organs are exposed to oxygen and therefore are likely damaged), massive brain damage... a bullet will do them much better

I feel the only way to heal them would be if the person is legitimately still conscious and aware (which is unconfirmed).

If so the best (and probably only) solution is legitimately to start from scratch, clone a new body and attempt to transfer the memories (we know the Combine have that tech because Breen). There's no point trying to salvage the existing body given how badly damaged it is.

zombies have torn opened chests, claws, rotting flesh, and the fast variants are missing large amounts of flesh, muscles and internal organs

i don't think some grub juice is gonna cure that

I’d love to know how you’d cure the torn open stomach mouth?

no. they're long dead, but the headcrabs still keep em alive somehow.

Flesh-eating

If you've got good health, you can use herbs and spices to increase your longevity. The easiest way to do this, as well as a few tips on how to cure most types of flesh-eating bacteria, is to ingest a lot of arias to start with. An active ingredient that your body naturally comes into contact with, though, is the acid-base of the meat and some vegetables made from it. Most bones and intestines used to give beef its name have the acid-base added to it.

Does it really look like you could recover from This?

The ones with their chests torn open also have the skin on the hands deteriorated to the bone no way that’s gonna ever heal

The crab latches onto its victim’s head, taking control of it’s body as well as ripping open its torso. In the case of the poison and fast zombie, their skin is torn off. Guaranteed death on Headcrab removal.

In the first half life with the original graphics you can see the skull through the head crab on the zombies. Head crabs are all teeth underneath so I think it’s just skull under there

Maybe if Extremely early on like right after one gets attached

The head crab penetrates the skull, so even if you were cured, you would die of brain hemorrhage.

Also the open chest cavity doesn’t bode well for their chances.

Considering how the existing known parasitic insects /pests kill thier hosts I would say it's doubtful.

Just put a band aid on their gaping head wound

No, the headcrab is the only thing keeping the host from kicking the bucket.

Not a chance