The asthma may be caused due of an allergic reaction to something. The allergen has to be identified and avoided as far as possible. Take steps taken to boost your niece’s immune system by making sure that she eats well balanced meals. Try to keep her as stress free as possible as anxiety can trigger asthma attacks.

Lemon juice has Vitamin C which is known to boost immunity.  Some people may feel that it is aggravating asthma, hence if it doesn’t suit her please stop using it. Check out the other remedies on our website
http://www.home-remedies-for-you.com/remedy/Asthma.html