
It can often feel like absolutely everybody is having cosmetic surgery these days, but Britney Spears has shared a warning about what happens when Botox goes wrong.
The 'Toxic' singer revealed she has been experiencing unwanted side effects from a Botox procedure, which left her with a drooping eyelid.
She has urged her fans to 'be careful' in a new video.
Spears came closer to the camera on her Instagram post, in a video she captioned "You can't trust anyone!"
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The popstar alleged her injector 'put so much Botox in this left eye that it drooped down like that', while pressing her eyelid down with her finger to show how far it had gone.
She explained how she had it done four weeks ago, and it is 'just now starting to raise up and be normal again'.

She added it was 'so embarrassing it was like that, urging viewers to 'be careful if you do Botox'.
“These people and these doctors, they can really f*** your eyes up,” she fumed.
“Be careful with these people, they try to change your face and try to f*** things up. Be careful with your bodies, because it’s yours and you own it. So, that’s it.”
What can cause a drooping eyelid after Botox?
So was Spears just unfortunate or is this a common issue with Botox?
According to Healthline, Botox is made up of a botulinum toxin, which works by causing paralysis of the muscles in the places it is injected.
The drooping Spears experienced was likely caused by the fact that the Botox migrated to a different area than the one that was intended.
The condition is referred to as ptosis, when it causes the eyelid to droop.
It tends to happen when the Botox migrates to the forehead or in between the eyes.

Patients often want Botox between their eyebrows to minimise frown lines frequently found there, but depending on the skin elasticity it can instead to migrate to the upper eyelid.
When this happens, the toxin accidentally paralyses the levator palpebrae, which is the muscle that holds the upper eyelid up.
This is what causes the droop, as the muscle can't work properly to hold it up.
Botox usually freezes the muscles for around six to seven months after injection when the proper amount is used, but these areas of migration tend to have less of the toxin so can recover within four to six weeks, which is what it seems like happened for Spears.
It is always worth researching your injector and looking for good reviews, and being mindful of how much is injected and where.