If anyone is experiencing earache after a cold or other type of infection, then don't waste your time with cures and see your doctor! Aching is an ear infection symptom and it means it's serious!
I was having severe earaches after an upper respiratory infection. It turned out that the bacteria had migrated from my throat to my ear. I had to take antibiotics.
My doctor said that my eardrum was in bad shape and if I had waited longer to get treatment, my hearing could have been affected! There is no fooling around when it comes to earaches!