Acute sinusitis and rusty brownish mucous is actually a blood mixed mucous. Nasal mucous is congested and brittle due to infection and when you try to clear the nose with force , small amount of blood will come out with mucous.
Adv: broad spectrum antibiotic, nasa decongestant tab and nasal drop and steam inhalation
Stop forceful blowing of nose
Next Steps
Consult online with X Ray PNS