Thanks for writing in.
I don't feel finding brown mucus at this stage is anything to be worried about. It must have been the collected , dried blood which was there when you were having your cough
I would suggest you do steam inhalation 3 - 4 times a day. Please don't blow your nose too hard, as it might hurt the ears.
If you have fresh red blood coming out from your nostrils, I would advise you to visit your doctor.
Hope this helps.
Dr. Divya Kuttikrishnan