ALLERGETIC RHINITIS/BRONCHITIS. Fatal?

I was suffering from cold and cough 3 months back. Later it got escaled to wheezing and breathlessnes. One day i had diffucuty in breathing when i visited my home(I stay at hostel) This difficulty in brrathing was observed only when i visited home and only during night while sleeping. Later it was discovered that its allergetic rintis. With docs consultation i was put on inhaler for 30 days and montral antihistamine capsules for first 15 days. Since then there is no any problem in breathing as it was faced earlier. Just experiemde a little cough in the morning due to cold weather as i also have tonsils and regular problem of cold and cough My wbc count before taking medication was 13000. After this medication of 30 days i did a S ige test which showed ige level of 3500 Does the ige level elevate so much in case of allergetic rhintis.. or is it a special case and fatal? How to treat high ige levels..