Recurring sinus symptoms with every season change, especially after a pneumonia illness, usually points to allergic rhinitis or a sensitive airway following the infection, not a vaccine reaction or weak immunity overall.
Next Steps
Please consult an ENT specialist for an allergy evaluation to identify your specific triggers, since avoiding them works better long-term than repeat antibiotics each season. Steam inhalation and saline nasal rinses can help day to day.
Health Tips
See a doctor sooner if you develop facial pain, thick coloured discharge for more than 10 days, or a persistent fever.