Sorry for late reply and inconvenience.
Well you should try saline gargles and menthol steam inhalation.
Maintain a good oral hygiene.
Take OTC Prilosec.
Rinse 3-4 times a day with mild to moderate salt water.
Start a multivitamin supplement containing B 12,zinc and Vitamin C.
Try sugar-free lemon drops, gum, or mints.
Try fresh or frozen fruits and vegetables instead of canned.
Season foods with tart flavors like lemon wedges, lemonade, citrus fruits.
Blend fresh fruits into shakes, ice cream, or yogurt.
Deep breathing exercises can be helpful.
Warm liquids can be taken.
You should consult an ENT surgeon, you will need a CT scan of your Paranasal sinuses. Your doctor may also do smell and taste tests or refer you to a neurologist for the same if symptoms'll persist.
Hope this helps.
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