hello good evening, by the query you have posted and the symptoms you have told it looks like asthma
with atopic dermatitis
. the reason he has a bad oral thrush
may be because of any inhaler he isn using with the steroidal dased drug, off course 13 month olsd child will need a spacer to use the inhalers. so please re check with your doctor for better assessment, also the skin condition you told might be atopic dermatitis or acute urticaria
. The treatment and diagnosis will be better if examined by a doctor. thank you.