Brief Answer:
you need to get clinically examined and investigated thoroughly ..

Detailed Answer:
Hello XXXX, welcome to HCM,

I've gone through your query and understand your concern..

Yes, blood in the sputum and in the snot can definitely be a concerning factor..

Several possibilities can be there..

On-off cough for few month can itself cause blood the sputum with excessive straining and efforts and micro-tear in the capillaries and vessels..it can be even due to respiratory tract infections and several other factors..

So, it has to be thoroughly investigated(including CBC, Chest X-ray, Sputum for Gm-stain, AFB, Culture sensitivity and a few more depending on findings) as well as you need to be clinically examined by a pulmonologist/ internal medicine specialist for further course of action accordingly..there'll be a need for appropriate antibiotic therapy as per the findings..

Try to remain well hydrated..drink XXXXXXX warm water, it'll provide a soothing effect..

Please take Steam inhalation three to four times a day for the time being..

Let me know if there's any further queries, i'll be glad to clarify..

Let me know how you stay in the due course..

Take Care
Kind Regards

---