Why do i have difficulty using my phone for some weeks after a severe migraine attack and how do i resolve this.

Migraine management: Once a diagnosis of migraine has been made, effective management of migraine involves three specific strategies: 1) patient education, 2) nonpharmacological management, and 3) pharmacological (medical) management. See your GP for evaluation and professional migraine management.

Migraine can be: treated in several ways as an earlier answer mentioned. As to the phone, perhaps you are afraid that it is emitting something that can harm you or you are pressing on a tender spot on you face w/it. Please consider biofeedback treatment or clinical hypnosis w/a licensed clinical psychologist. Peace and good health.