🌼 Allergic Rhinitis vs Common Cold Simulator

Onset Speed and Duration Differ Sharply

Allergy symptoms appear almost instantly on exposure.

• <30 min: Allergy onset (placeholder timing figure)
• 1-3 days: Cold onset (placeholder incubation note)
• Weeks: Allergy duration (while exposed to trigger)
• 7-10 days: Cold duration (typical self-limited course)

Timing curve placeholder

Short placeholder note on onset and duration curves.

Itchy Eyes and Nose Signal Allergy

Itching rarely occurs with a plain viral cold.

• ~80%: Itch in allergy (placeholder prevalence figure)
• ~10%: Itch in cold (placeholder prevalence figure)
• Common: Eye involvement (allergic conjunctivitis overlap)
• Frequent: Sneeze bursts (characteristic allergy pattern)

Itch signal placeholder

Short placeholder note on itch as a differentiator.

Discharge Color and Consistency Compared

Clear thin discharge favors allergy over infection.

• Clear/thin: Allergy discharge (placeholder consistency note)
• Thick/colored: Cold discharge (placeholder consistency note)
• Day 3-5: Color shift day (placeholder viral progression)
• Unchanging: Allergy color (stays clear throughout)

Discharge placeholder

Short placeholder note on discharge appearance differences.

Fever Presence Strongly Favors Viral Cold

Fever is uncommon in allergic rhinitis cases.

• Rare: Fever in allergy (placeholder near-absent figure)
• Sometimes: Fever in cold (placeholder mild fever figure)
• Cold only: Body aches (placeholder systemic symptom)
• Cold-leaning: Sore throat (placeholder overlap symptom)

Fever placeholder

Short placeholder note on fever as key differentiator.

Seasonal Pattern vs Contagious Spread

Allergy tracks pollen seasons; colds spread between people.

• Pollen/dust: Allergy trigger (placeholder seasonal driver)
• Rhinovirus: Cold trigger (placeholder viral driver)
• Cold: Yes: Contagious? (placeholder transmission note)
• Allergy: Yes: Recurs yearly? (placeholder seasonal recurrence)

Pattern placeholder

Short placeholder note on seasonal versus contagious pattern.

Placeholder takeaway: combine timing, itch, discharge, and fever to classify.