How to deal with constant feeling of lump in throat and chronic post nasal drip where you are always clearing your throat and always needing to spit up stuff?

Possibly allergies: Your postnasal drip could be from allergies, or from a chronic sinusitis. If you know that you have allergies, you can try an antihistamine such as loratadine or cetirizine, both over the counter. You can also try an over the counter nasal steroid, which can help both allergies and a chronic sinusitis. IF not improving, see your doctor.

? chronic sinusitis: chronic sinusitis is usually silent, with some acute flare ups, you might be suffering from such a disease, please visit your primary physician who can deal with it or refers you to an ENT/Allergist, goodluck