thanks for writing to health care magic.Recurrent itching
without any rash points towards some neural itch like brachioradial pruritus
It is sometimes associated with cervical spine
abnormaliteis. so it will be better to rule out spine deformiteis.
Topical lignocaine cream,acupunture and physiotherapy
Hydroxizine can relive itching but before taking it consult your doctor and see for any possible interactions.
I hope this will solve your query.Take care