Childhood Diseases

Question
Posted by: lerato | 2011/12/19

Q.

allergy

my daughter (2yrs,9m) constantly develops ''blister-like'' spots on her arms,feet and recently her cheeks.the spots start off small,then the area around the spot gets swollen.once the swollen area subsides,the ''blister'' grows bigger and white with ''water-like'' substance before bursting and leaving a black spot. Our GP suspects she could be having an allergy to our neighbor''s cat which is constantly in our yard and poch funriture.how does one determine the exact cause of the blisters'' and treat them?

Expert's Reply

A.

Paediatrician

It is possible that your little daughter has a common skin problem seen in children called 'papular urticaria' This is usually due to an allergy to sand flea bites.However it is not typical of papular urticiaria to leave a black spot as you describe here.Another possibility is that she is having a reaction to sunlight which is known as 'photosensitivity' Children who are diagnosed as having photosensitivity should also be tested for an inherited illness called 'porphyria' It is important for your daughter to be seen and diagnosed by a dermatologist.In the meantime you can read more about all of these skin conditions on Google and also look at the pictures.

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