A tickle in the throat is often caused by allergies, for which an antihistamine is beneficial. These can be taken in pill form, or even syrup. Other methods for how to get rid of a tickle in the throat: a spoonful of honey, either alone or in a cup of tea will also help; throat drops, and gargling with salt water.
how to get rid of a constant tickle in the throat? – http://www.ehow.com/how_7593600_rid-constant-tickle-throat.html