Hello dear user! I have gone through your query and understood your concerns! Thank you for sharing them on healthcaremagic. Herpes (simplex), is a virus that generally wakes up when some other diseases are going through. So every time when people have a condition which decreases their immunity, herpes is possible. In your case, you have had for 5 weeks a cough (and possibly cold) that may be caused by any infection of your upper or lower respiratory tract. Such time is enough for the body to have a lower immunity and other opportunist infections. I would recommend you to see your doctor again after completing the cure he has prescribed you to see if the infection is cleared. Keep your body well hydrated with plenty of liquids, take vitamins in your diet. For localized herpes you can use topical creams of Acyclovir or tablets if the herpes is spread. I hope this answer was helpful to you! Please kindly rate it as helpful and write a short review about your experience with me! I would appreciate that a lot. Thank you and best regards! DR ERIOL.