The shift in mood can be corrected by rewriting the sentence in the following manner:
If there is no sting or rash, rub it on your lips and put it on your tongue.
Mood in grammar is a category that indicates what a verb expresses. Types of mood are:
In the second part of the sentence, starting from "rub it on...", we have the imperative mood, which indicates a command. However, we notice a shift in the mood with the use of "should" afterward.
To correct that shift, we must remove the verb "should" and maintain the imperative:
"If there is no sting or rash, rub it on your lips and put it on your tongue."
Learn more about the imperative mood here:
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