What should i do my throat is itching like crazy?

Allergy or reflux: Both allergy and reflux can cause an itchy throat. Since you already are on allergy meds, try increasing your water intake, cut our caffeinated beverages which can dry you out and get a neti pot or similar salt solution nasal irrigation system at the drug store. Consider elevating the head of your bed when sleeping and a short trial of Omeprazole for acid reflux.