How long before we can have sex again

Patient: My wife is allergic to parmesan and we found out that it affects her when we have sex. I accidentally ate it today for dinner in a pizza. How long before it clears my system and doesn’t affect her.

Symptoms: See question

Doctor: May be give it 3 hours to be on the safe side . But I would not recommend sexual intercourse tomorrow to avoid any misha ps. Hope this information was useful