the medications prescribed for the asthmatic bronchitis
and yes there is a co- relation between the asthma and the atopic dermatitis
i will advice you to opt for homeoapthic medicines along with the allopathic medicines..
it will help him to build up his immunity and resisitance against asthma and as his asthma will get better the atopic dermatitis will also heal with the homeopathic
you can get a haemogram and a chest -x- ray done.
are there any triggering factors for the onset of asthma like hot .cold climates,dust. seasonal changes, anger, fear, sleep deprivation
wishing him good health