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This is generally considered not good advice for dogs like Basenjis. Unlike other dogs, they are not very forgiving with people that cause them pain. You will likely end up with a dog that becomes fearful of people reaching for his head. Often squeezing a dog's muzzle to alleviate play biting will have the opposite effect as well, as it charges a dog up even more.
And FTR, rubbing a dog's face in anything is cruel, and ineffective teaching. Not one, single professional trainer that is up to date on current techniques would advocate that.
There are many threads here about working to reduce puppy play biting with Basenjis. Look under the training threads.