If you have experienced problems yet still want whiter teeth, then it would seem prudent to seek the advice of your dentist and MD to get their opinions about the cause and possible work arrounds. What follows are points and issues that we think should be considered and discussed with them.

There are a number of types of circumstances that tend to trigger the activation of the herpes virus.

Possibly exposure to the whitening agent acts as a trigger for you. If so, possibly using a strip that has a lower concentration whitener would allow you to continue treatments yet not be so strong as to activate the virus. (Crest Whitestrips Gentle Routine is a lower concentration strip. Possibly using it for less that the full 30 minutes would also be less likely to trigger your virus.)

The overall whitening effect you ultimately get correlates with your total exposure to the whitener (concentration and time). So with "gentle" strips, especially if used for short treatments, the whole whitening process will take longer (greater number of strips and weeks). But this routine may make it possible to whiten your teeth at-home where otherwise you couldn't.

We will also say that different than with all at-home whitening techniques where the whitener comes into contact with soft tissues and is also swallowed, in-office whitening technique (professional treatments in your dentist's office) offers the advantage that the whitening agent is only applied to tooth enamel (no soft tissue contact nor any systemic exposure takes place).

Hopefully your dentist and doctor can find a work around for you. Good luck.

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