“Habit reversal: increasing awareness of nail biting behaviour, predisposing activities or warning signs, and instead practicing a distracting behaviour (such as clasping hands) may help stop nail biting. Habit reversal works on the principle of recognising the behaviour/habit, in this case nail biting, and then developing a competing behaviour that is performed instead. It is a form of cognitive behavioural therapy, and has shown to stop/reverse nail biting behaviour.”

“Object manipulation: manipulation of an object during warning signs of nail biting, like a stress ball, can also distract from nail biting behaviour and deliver the same satisfaction. This type of treatment has shown to be helpful for nail biting (but not as good as habit reversal).”

“Bitter-tasting nail lacquer: this practice of applying a bitter-tasting lacquer to the nail to deter from nail biting is popular. It is a form of aversion therapy. The nail lacquer contains denatonium benzoate and sucrose octaacetate and is available over the counter. This method has shown to improve nail biting.”

“Non-removable reminder: a wristband or another form of an easily visible non-removable item can be worn to remind people not to nail bite.”

“Application of artificial nails or gel manicures: I hear from my patients that this is a popular technique that they have used with positive results. The obstacle to nail biting is not wanting to ruin their nice new nails or nail paint.”

“Oral medication: This is only really suitable for moderate to severe cases, or in those patients who are developing complications or poor quality of life. Medication can be used in addition to any of the options above. This option requires specialist referral.”

If nail biting is something you’re worried about, you should seek advice from your GP or a medical professional.

How to stop nail biting: common causes and the effect it has on your nails