Hello
Thanks for your query at DoctorSpring.com. I have gone through your question in detail and I can understand what you are going through.
Your suspicion is right. Cold symptoms cannot cause sexual dysfunction. It is the medicines used for cold, acting or histaminc and sympathomematic systems, that can cause sexual dysfunction. I have many patients coming to me with such a problem.
The good part is it is completely reversible ones you are off the mdicine and it may take another 4-5 days after you stop taking these tabs. You may discuss this issue with your girlfriend who will probably happy to cooperate with you for time being. You wont need any add on medicines as of now. Try taking some rest and use steam inhalation. If you are still not on antibiotics you may start on some like cefexime or augmentin etc.
Hope that helps. Would be glad to answer any follow-up queries.
Wish you good health.
Kind regards
Dr. Srikanth Reddy MD