Ramesh frequently sneezes due to an allergy. Which medicine will the doctor prescribe to him?

In the metropolitan cities of $India$,many children are suffering from allergy/asthma. What are the main causes of this problem? Give some symptoms of allergic reactions.

Which of the following diseases is characterized by an exaggerated response of the immune system?

How can allergies be detected in a patient?

Which chemical is used for the treatment of allergy?

Which of the following quickly reduces the symptoms of allergy?