Danniella Westbrook has insisted she is drug free after worrying pictures emerged of the former soap star sporting a bandage beneath her nose.
The actress, 43, prompted concern after stepping out with a small patch of medical dressing beneath her nostrils on Saturday morning.
Danniella, who is understood to be drug and alcohol free following a reported relapse in 2014, frequently appeared to conceal the plaster with a free hand while taking a brief stroll.
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The troubled star has since responded to fears that her septum has collapsed, more than a decade after undergoing reconstructive surgery to have it rebuilt following years of cocaine abuse.
A representative told MailOnline: 'Danniella Westbrook has septicemia caused by dental problems.
'She is very unwell and has been in and out of hospital several times over the last two months.'
Separate sources have since reiterated that her blood infection has been caused by rigorous dental surgery.
'Steel rods going into her gum have caused an infection and therefore she is wearing a plaster with a sponge in her nose to stop the infection spreading,' a spokesperson told The Mirror.
Danniella revealed in October that she was undergoing a series of cosmetic procedures, including a breast lift and dental work, in a bid to rebuild her shattered confidence.
'My drug habit has aged me and it shows through my looks,' she told Revealmagazine. 'I'm not worried about being 41, but I feel like an old woman.'
She was later seen nursing her mouth with an ice pack after visiting a central London dental clinic in August.
That appearance came after series of bizarre messages surfaced on her Twitter account, claiming she was pregnant and had been hospitalised after suffering a drug addiction relapse.
A separate message sent from Danniella's email account to MailOnline also read: 'I really need help. I'm relapsing so bad.'
The actress later used Twitter to blast the allegations, claiming her social media and email accounts had been repeatedly hacked.
Speaking to MailOnline about the disturbing incident on Wednesday, she reve she is hoping police will take swift action and 'send this crank to prison.'
She added: 'It's not nice to think they are fixated on pretending to be me and getting access to all my private emails.
'To be honest, I'm going to go away and try and rest and relax. This whole thing is very frightening and draining. 'It's like this stalker won't give up until I'm run into the ground.'