Hello Thanks for writing to H.C.M. I read your query regarding swelling and pain in nose. you are most probably having vestibulitis of nose, this is a painful condition and here I would like to tell you that both nostrils, upper and lower lips are calld as DANGER AREA of face. Because venous return from here goes through angular vein to interior of cranium to cavernous sinus of brain therefore any infection from above danger area may reach to cavernous sinus. In this way sinus gets thrombose and a critical condition named as CAVERNOUS SINUS THROMBOSIS develops. In this disease facial swelling at the bridge of nose appears with severe headache. If this critical condition is not treated properly disease may complicate to threat to life. Here in your case your vestibulitis is initially improved by medical treatment but later Swelling appears at the bridge of nose either due to thrombosis of angular vein of cavernous sinus it self. I would like to suggest you that you should consult ENT specialist for through examination and relevent investigations and finaly treatment to prevent emergency. Regards.