After teeth whitening, your enamel is temporarily more porous and prone to staining or sensitivity. What you do in the first 24–72 hours really matters for maintaining results and avoiding discomfort.

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Right after whitening:

• Avoid eating or drinking for at least 1 hour (or as directed).

• Drink water to stay hydrated and help rinse your mouth.

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For the next 24–48 hours (“white diet” rule):

• Stick to light-colored, non-staining foods:

• Good options: chicken, rice, pasta, potatoes, white fish, yogurt, egg whites, bananas

• Avoid: coffee, tea, red wine, cola, berries, tomato sauce, soy sauce, curry

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If you must have darker drinks, use a straw to reduce contact with your teeth.

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Oral care tips:

• Brush gently with a soft-bristled toothbrush.

• Use toothpaste for sensitivity if needed (look for ingredients like potassium nitrate).

• Avoid very hot or very cold foods if your teeth feel sensitive.

• Don’t smoke or vape—nicotine stains quickly after whitening.

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Sensitivity management:

• Mild sensitivity is normal for a day or two.

• You can use desensitizing toothpaste or gels.

• Avoid acidic foods (like citrus) which can worsen discomfort.

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Longer-term maintenance:

• Limit staining foods/drinks or rinse your mouth after consuming them.

• Maintain good oral hygiene (brush twice daily, floss).

• Consider touch-up treatments as recommended by your dentist

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If you experience severe pain or sensitivity lasting more than a few days, it’s a good idea to check in with your dentist.