I've lost my voice due to allergies but it's coming back but not all of the way, what should i do?

See ENT doctor: Loss of voice or laryngitis is commonly secondary to a viral infection. Voice rest and fluids usually allows recovery within 2-3 weeks. If allergy is the cause of sever post nasal drainage, certainly, that may also cause inflammation of the vocal folds. If dysphonia (alteration of the voice) persists for more than 6 weeks, i would suggest you see an ENT doctor for an evaluation. Allergist also.