Is there really anything you can do to counter nurse?

Breaking LoS and trying to out mind game the mind gamer if you get stuck in a dead zone with nothing to break LoS.

A good Nurse will catch you no matter how good you are at breaking LOS and playing off that. Stealth is 100% the way to go, and I hate saying this because stealth in this game is an extremely boring form of counterplay that should never be resorted to.

Additional to the tips above you could watch how player in tournaments juke her. But against a really good nurse you need 4 really good survivor to win. The other 3 need to do gens.

As with all strong chase powers, all you can do is make it hard for them to land their power. There isn't any good chase power that has 100% counteplay that works every time.

You need to do a lot of predictiong, clever pathing, properly breaking LOS etc which is all risky and can result both in success or failure depending on which player reads the other one better.

Killers like Nurse, spirit, slinger, hag, huntress, PH all have extremely strong chase powers when used at the highest skill level. That still doesn't mean that their powers are foolproof, even the best players make mistakes if you know how to properly play againt their power.

Simplest advice i can give you is to learn how to run in a straight line when your uninjured.

Never try to spin a nurse attack. Just prepare to use the speedboost from getting hit to get as far as possible.

Same princliple when she misses an attack. Try to have a los blocker if you can but the simplest thing you can do is just create distance.

Long distance blinks are hard so most nurses will just blink to reduce the distance and then start chasing again. This is very time consuming so that's one simple thing you can do to make the nurses life harder.

Not always the best thing you can do but it will never be a bad thing to do vs nurses

No.

You can break LoS and be unpredictable. It'll help, especially against average Nurses.

Good ones though? There's a reason the DS-Unbreakable 4-man combo is considered by many to be the bare minimum to win against one.

• Be unpredictable. If you always double back, a good Nurse will adapt to that. If you always fake a vault or you fast vault a window then slow vault back, a good Nurse will adapt to that too. Switch up your tactics so that she won’t be able to easily predict what you’ll do next.
• Break line of sight using map props and tile sets. You indicated you do this already but it’s worth repeating.
• In the same vein, use the environment and large map props to your advantage. There are large boulders, tire mounds, hills, etc. which a Nurse will struggle to blink through. Although these likely won’t stall a good Nurse for long, you can cheese a less skilled Nurse by using these to break LoS and forcing her to waste her blinks.
• Utilize stealth. Spine Chill and Iron Will can be particularly troublesome if multiple survivors are running them at the same time. If the killer is struggling to find survivors while they’re still able to work on gens, that’s a lose-lose for the killer. Nurse can’t end chases quickly if she can’t find survivors in the first place.  
• If you’re not stealthing, hold W and make distance. It can be surprisingly difficult to catch up to a survivor who keeps running and making distance. If she’s not running blink recharge or fatigue decreasing add-ons this can be even more effective.
• If you haven’t already, practice playing Nurse to get a feel for her limitations, i.e.: how her blink interacts with the environment, how long it takes for her blink to recharge, how long her fatigue lasts and how each of these things is impacted by various add-ons.
• Get good with flashlights. You can flashlight a Nurse in between blinks which actually denies her of her chain blink. If you go for a killer blind, you'll either force a blind on her and she'll have to cancel her blink, or she'll have to turn away and/or blink away to avoid the blind. I wouldn't recommend going for a full burn, though, because it takes too long and won't ever be viable against a halfway decent Nurse.

Hah this sometimes works. When you break LoS, do something no sane person would do, like stopping and crouching at that corner. Or making some tea, or getting yourself a snack.

Hey even if the Nurse catches you, you made yourself a sandwich amirite?

No but seriously, sometime you just do what no sane person would do and keep the Nurse guessing, and then the next time you act sane again and it gives you that much more time to get away. This works sometimes but when it does it’s really funny(for you and for the Nurse hopefully).

I haven't been able to properly experiment with this but as far as I can tell from playing Nurse myself, she can't check lockers after blinking, and she can't cancel a blink once she starts charging it. So if you see her charging a blink, jump in a locker if one is nearby. She can't do anything about it and you can burst out during the fatigue. All the better if you happen to be running Head On as well.

Mind games.

You have to get in her head.

I find that chaotic pathing helps confuse, but then you have to throw in predictable pathing, and ultimately trick her so that you can make distance. LOS is big, but it’s not everything. It’s just one piece of the puzzle. Don’t do the same thing twice in a row, but then do the same thing three times in a row. She’s reading you, but the biggest piece of the puzzle I’ve found is that you have to read her. Just like you have a play style, so does she. It’s a little different with each one you encounter. If you play only for breaking LOS, that is a pattern that helps nurse predict where to blink to, remember that. Make her think you are playing LOS, then make an immersive play.

Hope anything there helps.

Suggested strategies are fine but I say take some time just using her. You'll pick up on strategies that work for her and see first-hand what works against her. A great player killer or survivor will make you feel powerless in the face of their opposition, but that's experience mitigating mistakes.

Forget about pallets.

Forget about looping around objects.

Look, the World just opened up to you.

Keep your distance. Preempt running away if you think she is coming towards you. Giver her as little information of your position as possible.

Remember, the game is meant to have short to mid length chases. You are not supposed to run the killer through the whole match. Just need to take as much time as you can so other teammates can do generators.

If it's a really good nurse, I don't think there's much you can do. If it's an average nurse, run out into the open, let your mind go blank, and literally don't decide which way you're going to dodge until you hear her inhale. Then turn in a random direction and, when the screech is done, turn in another random direction. Get distance while she's fatigued and repeat the process.

Tbh, a good nurse player has no true counterplay. Survivors have only 2 things to counter killers. Pallets and vaults. Nurse counters both. But the thing is, her skill celing is so high that it is rare to encounter a good nurse, but when you do, the game becomes so unfun.