Actress Kaley Cuoco-Sweeting has blasted rumours suggesting she is using the excuse of sinus surgery to hide a secret nose job, insisting the procedure was long overdue.

The Big Bang Theory star underwent the operation last week (ends26Dec14) and shared a number of photos from her hospital bed, showing her with a tube through her nose, on on Friday (26Dec14).

The snaps prompted some critics to question the real reason behind her hospital stay, but Cuoco-Sweeting has now set the record straight, claiming she would have no problem admitting to having plastic surgery if that was actually the case.

Taking to Instagram on Monday (29Dec14), she writes, "For those haters out there who are gonna hate hate hate no matter what, let me inform you that I have not been able to breath (sic) through my nose like a normal human being in years.

"This surgery is changing my life. With that being said, if I Did get a nose job, (which I didn't) I would be shouting that from the rooftops as well."

The actress also reveals she has been "putting sinus surgery off for year", while she pays a special tribute to her "amazing" husband, tennis player Ryan Sweeting, for taking care of her as she continues her recovery.

The couple will celebrate its first wedding anniversary on Wednesday after tying the knot last New Year's Eve (31Dec13).