It may or may not ... it may help if it is due to asthma or allergy .... welll a cough since 2 mnths is distrbing... it needs evaluation like chest xray, auscultation, observing the type of cough and history...
Next Steps
Visit and ENT doc or respiratory physician
Health Tips
Avoid cold things and anything which u think may be allergix, i would suggest you to avoid brinjal for few days, avoid polution, warm water may help