There are no specific avoidance measures that you can take to avoid your son getting croup again. In most cases croup is a one off illness and less commonly children go on to develop a condition called spasmodic croup which is not very severe and croup episodes occur to about 5 years of age. If you are concerned about your son getting another episode of croup then you can use a nebuliser with a special sachet called Pulmicort at the first sign of croup, but you will have to speak to your paediatrician about this.
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