Put an inch of the toothpaste on to a soft or super soft toothbrush and do tooth brushing for 2 minutes at least. Remember to brush all sensitive areas. Do it at least twice daily for 2-3 weeks till the sensitive areas get better.
Avoid hard bristles tooth brush and don’t brush too hard ( vigorously) on the sensitive areas .
Also avoid taking acidic foods, pickles , vinegar , cola drinks and citric juice directly as they can cause further sensitivity and delay any relief. If at all you have to take these drinks, use a straw to minimize contact with teeth.
To explain in simple terms, , the tooth sensitivity happens when the dentinal tubules of a tooth become exposed due to wearing away of the protective enamel and these desensitizing pastes contain ions that seal them or numb the nerves inside of them.
Hard brushing and acidic foods erode the tooth further and aggravate your problem by negating the benefits of a desensitizing paste.
Next Steps
Get a complete dental check up to rule out any carious lesions and plaque issues.
Switch to a regular tooth paste when your sensitivity improves.