Welcome to Health care
You are likely suffering from Sinusitis
that's why you are having Headache and running nose with nasal blockage. Homoeopathic medicine has good results in this field. Start talking Allium cepa 200, 10 drops twice daily and Teucrium 200, 10 drops twice daily in 1/2 cum of luke warm water. Consult a Homoeopath.
You can consult me at dr.pratimaverma @rediffmail.com.
Thanks and take care.