| People who develop allergies may also be described as being atopic. Atopic individuals may develop an allergy to only one allergen or to a range of them. Some eventually 'grow out of’ their allergy. Atopy or allergy is passed on genetically, although some members of a family never develop an allergic condition and one member of a family may develop asthma, another hay fever and another atopic dermatitis. The reasons for this variation are complex and not fully understood. People who develop allergies may also be described as being atopic. Atopic individuals may develop an allergy to only one allergen or to a range of them. Some eventually 'grow out of’ their allergy. Atopy or allergy is passed on genetically, although some members of a family never develop an allergic condition and one member of a family may develop asthma, another hay fever and another atopic dermatitis. The reasons for this variation are complex and not fully understood. |