Montair LC kid is a drug that has a stabilizing effect on the cells that release histamine
, the agent that causes the allergic response
. This stabilizing effect takes at least 6 months to have any obvious clinical improvement in your child. So you need to be very patient. Do remember these drugs have no role in an acute event. In other words, you cant expect an immediate response.
His low Hb may be due to nutritional anemia
which is very common in this age. You need to recheck his dietary intake and give iron rich foods.