A runny nose and frequent sneezing without fever often suggest mild allergies or a common cold, which usually resolve on their own without additional vitamins or medications beyond vitamin C.

🩺 What This Likely Is

These symptoms are commonly caused by viral upper respiratory infections or allergic rhinitis. Since you do not have a fever, a bacterial infection is less likely.

🏥 Self-Care Recommendations

• Continue your vitamin C as it supports immune function.
• Use saline nasal sprays or steam inhalation to relieve nasal congestion.
• Avoid known allergens or irritants like dust or strong perfumes.
• Stay well hydrated and rest adequately.

⚠️ When to See a Doctor

• If symptoms worsen or persist beyond 10 days.
• If you develop fever, facial pain, or thick nasal discharge.
• If breathing becomes difficult or you experience severe headaches.

For personalized advice and if symptoms persist, please consult an ear, nose, and throat (ENT) specialist.To narrow down potential causes, we will need some more information.Please tell me your age and gender.