Spirulina-Derived Product Alleviates Oral Mucositis in Patients Undergoing Radiotherapy for Malignant Head and Neck Tumors

This study is testing whether a product derived from spirulina (a type of blue-green algae) can help reduce mouth sores (oral mucositis) in patients receiving radiation therapy for head and neck cancer. Mouth sores are a painful and common side effect of radiation in this area, and this study wants to see if the spirulina product can provide relief. **You may be eligible if...** - You are 18 or older - You have been diagnosed with a non-metastatic head and neck cancer confirmed by biopsy - You are receiving radiation therapy (60–72 Gy) with or without chemotherapy - You are in reasonably good physical condition (ECOG performance status 0–2) - You are willing to sign the consent form **You may NOT be eligible if...** - You have a known allergy to spirulina - You are currently taking antibiotics, antifungal drugs, or similar medications - You have already developed severe mouth sores before starting treatment - You have other significant conditions that would interfere with the study Talk to your doctor to see if this trial is right for you.