Conversation: The conversation between human and AI assistant.
[|Human|] hi, I had a colonoscopy today and work up from the anesthesia sneezing and developed a runny nose...feels like I just caught an instant cold. I have great before the procedure. The nurse told me that the oxygen was the cause. ( I immediately needed a napkin to wipe my nose before I could sit up.
[|AI|]  Hello. Thank you for asking at Chat Doctor. If you have not had any chronic allergy problem like allergic rhinitis, I would agree that oxygen is a possibility. Sometimes oxygen works as irritant for nasal mucosa and this irritation causes immediate sneezing and running nose. Mostly it is self-limiting. There is nothing serious in that. You need not worry at all. If you have an allergic condition like allergic rhinitis in the past, there are many possible allergens in a hospital environment like latex, Chat Doctor.  In that case taking medications like levocetirizine & montelukast helps. Hope this will be helpful to you. Wish you best of the health. Regards.