I got allergy which is itchy sometimes, what to do in eradicating it?

Itch: If you know what causes the itch, then remove it from your environment. If you are unsure or have other symptoms, an allergist can test you to determine the cause and provide treatment.

Avoid contact: Good afternoon. , for any allergy, avoidance is the best measure. In order to avoid we need to know what you are allergic to. That could be done by correlating exposure to offending agent or by allergy tests. Depending what type of allergy symptoms, antihistamines or cortisone creams will give relief temporarily until then.