Chrissy Teigen shows off her painfully swollen lips after suffering from altitude sickness during trip to Utah

Chrissy Teigen has swollen lips.

The 33-year-old Sports Illustrated model feels like her mouth is 'about to explode' after she suffered a flare up of the autoimmune condition Angioedema — the swelling of the deeper layers of the skin caused by a build-up of fluid — which she believes is a result of altitude sickness from flying from Los Angeles to Utah.

Taking to her Twitter account, the brunette beauty uploaded a close-up photograph of her puffy pout and wrote: 'very upset and saddened that my own birth state, Utah, has chosen to poison me with terrible altitude sickness.

A lip issue: Chrissy Teigen has swollen lips and feels like her mouth is 'about to explode' after she suffered a flare up of the autoimmune condition Angioedema in Utah

A lip issue: Chrissy Teigen has swollen lips and feels like her mouth is 'about to explode' after she suffered a flare up of the autoimmune condition Angioedema in Utah

'Did u know angioedema can be triggered from altitude sickness? learn something new every day! my lip about to explode. goodbye world.

'It's so big it's shiny and hard like glass.'

Teigen is in Utah with her husband John Legend for the wedding of friends.

Celebrity hairstylist Jen Atkin is also in attendance, as she posted a shot of herself posing with Legend in Park City on her Instagram on Saturday.

Better times: Teigen is in Utah with her husband John Legend for the wedding of friends; here she is seen unswollen just two days ago

Better times: Teigen is in Utah with her husband John Legend for the wedding of friends; here she is seen unswollen just two days ago

Friends: Celebrity hairstylist Jen Atkin is also in attendance at the wedding, as she posted a shot of herself posing with Legend on her Instagram on Saturday

Friends: Celebrity hairstylist Jen Atkin is also in attendance at the wedding, as she posted a shot of herself posing with Legend on her Instagram on Saturday

Chrissy isn't afraid to give her fans a close-up view of her body as just last week she shared a video of her getting Botox in her armpits by Dr. Jason Diamond.

She wrote over a clip of her being injected: '@drjasondiamond is my favorite human. 'BOTOXED MY ARMPITS.

'TRULY BEST MOVE I HAVE EVER MADE.

Puffy: Taking to her Twitter account, the brunette beauty uploaded a close-up photograph of her puffy pout

Puffy: Taking to her Twitter account, the brunette beauty uploaded a close-up photograph of her puffy pout

What gives: Teigen tagged her friends who are getting married, jokingly asking them, 'Why have you chosen to get married in a place which would try to destroy me?'

What gives: Teigen tagged her friends who are getting married, jokingly asking them, 'Why have you chosen to get married in a place which would try to destroy me?'

'I can wear silk again without soaking woohoo!'

In the video, the Lip Sync Battle star — who has Luna, three, and Miles, 14 months, with 'All of Me' hitmaker husband John Legend — shared how painless it was and breathed a sigh of relief as she admitted she was scared.

She said: 'That really isn't anything.

'It looked very frightening.'

And the doctor told her: 'That's it.'

Procedure: Just last week Chrissy shared a video of her getting Botox in her armpits by Dr. Jason Diamond

Procedure: Just last week Chrissy shared a video of her getting Botox in her armpits by Dr. Jason Diamond

Although it was her first time having Botox under her arms, Chrissy previously revealed she had her armpit 'sucked out' to make her 'feel better in dresses.'

She shared: 'I had an armpit sucked out, which was one of the best things.

'It's a big secret, but I don't care.

'It was nine years ago or so.

'And I had two inches to my armpit. Now it's back though, so now I've gotta pay for [liposuction] again.'

However, Chrissy admitted that it was 'the dumbest' thing she's ever done.

She explained: 'It was so easy. It made me feel better in dresses; I felt more confident. It was the dumbest, stupidest thing I've ever done. The dumbest, but I like it, whatever. I have no regrets, honestly.'

Transparent: Teigen, seen here last November, isn't afraid to let fans know about what she's done to her body

Transparent: Teigen, seen here last November, isn't afraid to let fans know about what she's done to her body

Chrissy Teigen shows off her painfully swollen lips after suffering from altitude sickness

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