Our Lab (10 years old and rescued) has in the last few months become nervous of bangs locally and distant. She is normally a happy and obedient soul and loves her home life. We do our best to reassure her but it makes us unhappy to see her distressed. She has recently had medication for an ear infection and quite a lot of wax has been removed which obviously has improved her hearing. I expect that calming measures are available but need advice before taking action. All comments / advice welcome please.