Cold

• Aconite
  From exposure to cold dry air. Coryza with sneezing, dry or scanty discharge, pain at root of nose.
• Arsenic Album
  Thin, irritating discharge from nose, with much sneezing. Sneezing without relief. Hayfever and coryza worse outdoors, better indoors.
• Allium Cepa
  Colds in damp, cold weather, acrid nasal discharge, bland eye secretions, worse in warm room, better in open air.
• Rhus Tox
  Sneezing, coryza from getting wet. Tip of nose red, sore, ulcerated.
• Natrum Mur
  Violent sneezing. Fluent discharge from nose which may change into stuffiness after 2–3 days. Discharge thin and watery like raw white of egg.
• Hepar Sulph
  Painful swelling of nose, soreness of nostrils, sneezes on going into cold dry air, with running from nose that later turns into thick, offensive discharge. Nose stopped up when out in cold air.

Cough

• Aconite N
  Dry, hoarse, irritative suffocating cough, cough during sleep.
• Arsenic Alb
  Spasmodic cough, patient wakes up from sleep, with little expectoration of phlegm resulting. Cough worse during 12–2a.m., worse on lying down.
• Spongia
  Dry, barking cough with loss of voice. Cough abates after eating or drinking. Cough worse due to sweets or cold drinks or smoking.
• Bryonia A
  Cough on getting up, worse on movement, with some expectoration, sometimes bloody. Cough worse on entering a warm room, sharp pain in chest, cough on lying down at night.
• Natrum Mur
  Cough with pain in forehead, stitching pain in right of abdomen. Urine escapes while coughing, at times. Flow of tears while coughing.
• Pulsatilla
  Cough is less during day time, with much expectoration, dry and tickling on lying down at night, disappears on sitting up in bed.