Similar to any serious health related issues, prior to actually finding solutions, there would require being a proper study of the problem at hand. You should rest assured that it has been the work of a medical professional. In this case, it would be your audiologist.
You should think about walking down to the mall and browsing the cheapest supply of hearing aids. However, by doing so, you would almost inevitably cause yourself to purchase a product that has been partially or inadequately meeting your ear challenges. You would be able to seek appropriate hearing solution Singapore after gathering adequate information on it beforehand.