FLO CRS Refill Pack 50 Sachets – High-Volume Sinus Rinse Sachets for Chronic Rhinosinusitis & Severe Nasal Congestion

FLO CRS Refill Pack provides 50 individual sachets of FLO CRS (Chronic Rhinosinusitis) sinus rinse solution — a large-volume, non-medicated, preservative-free isotonic irrigation designed for severe and chronic sinus congestion. Each sachet makes a full 240ml rinse solution — substantially more irrigant volume than standard nasal sprays — effectively flushing debris, allergens, bacteria, and thick mucus from the sinuses. Used with the FLO CRS rinse device (sold separately). ENT-specialist recommended for post-nasal surgery care and chronic rhinosinusitis management.

• 50 individual sachets — 50 full 240ml rinse solutions
• Large-volume 240ml rinse — superior clearance vs standard nasal sprays
• Preservative-free, non-medicated isotonic solution
• ENT recommended for chronic rhinosinusitis and post-surgical sinus care
• Requires FLO CRS rinse device (sold separately)

Frequently Asked Questions

What is chronic rhinosinusitis (CRS) and why does it need high-volume rinsing?

Chronic rhinosinusitis (CRS) is persistent inflammation of the sinuses lasting more than 12 weeks — characterised by thick nasal discharge, facial pressure, reduced smell, and nasal obstruction. Standard nasal sprays deliver small volumes (0.1–0.5ml per spray) that barely reach the sinus cavities. High-volume irrigation (240ml) actively flushes the entire nasal cavity and sinuses, removing thick mucus, allergens, biofilm, and inflammatory debris that small sprays cannot clear. This is the standard of care for CRS management recommended by ENT surgeons globally.

What is the difference between FLO CRS and standard FLO saline spray?

Standard FLO saline spray is a small-volume moisturising nasal spray for mild congestion, dryness, and everyday nasal hygiene. FLO CRS is a high-volume large-bore rinse system specifically designed for chronic rhinosinusitis — it delivers 240ml of isotonic solution per session to fully irrigate the nasal and sinus cavities. FLO CRS is the clinical-grade option for chronic or severe sinus disease.

Do I need a special device to use the FLO CRS sachets?

Yes — the FLO CRS sachets are specifically designed for the FLO CRS rinse device (a squeeze bottle with a specially designed nozzle for large-volume nasal irrigation). The device is sold separately. Once you have the device, you only need to purchase refill sachets.

How often should I rinse with FLO CRS?

For active CRS: twice daily (morning and evening) — this frequency is supported by clinical guidelines for CRS management. After sinus surgery: as directed by your ENT surgeon, typically 2–4 times daily in the immediate post-operative period. For ongoing maintenance: once daily or as directed by your ENT.

Can children use FLO CRS?

FLO CRS large-volume irrigation is generally recommended for adults and older children (typically 12+). For younger children with sinus issues, consult your GP or paediatrician about age-appropriate nasal rinse options. FLO produces separate paediatric formulations for younger children.