Dulcamara Effect In ColdCatarrhal rheumatism which is  brought on or aggravated by exposure to cold, damp, rainy weather or sudden changes in hot weather.  ii) Skin is delicate, sensitive to cold, liable to eruptions, especially urticaria; every time patient takes cold or is long exposed to cold.iii) Increased secretion of mucous membranes; perspiration being suppressed from cold.  iv) Dropsy: after suppresses sweat; exposure to cold. v) Catarrhal ischuria in grown-up children, with milky urine; from wading with bare-feet in cold water.vi) Diarrhoea : from taking cold in damp places, or during damp, foggy weather; change from warm to cold weathervii) Aggravation from cold in general, cold air, cold wet weather.