I am 26 Year old male I am an allergic patient from five years. But from last one year periodically in around 8 To 10 Days I am suffering from excessive uncontrollable head pain. Which starts in afternoon and lasts till night previously used medicines for allergy are. 1 Citrizine 500 2 Telekast L 3 Azeflo nasal spray 4 Alerbloc. Kindly help me if this headpain is due to the medicines above. Or any other serious problem like migraine or anything.