Suggest Medication For Severe Headache

i am k.v.rao. 67 years old. i am using razo 20,lasilactone 1/2 alternative days,lanoxin 0.25 weekly 5 days,repace 50 [morning] clodrel 75[afternoon] cardivas 3.125,alprax 0.25.[night].this is my regular course priscribed by a cardiologist.recently i have been suffering from dry cough, no appetite.yesterday i met a gastro entrologist. blood report: esniophils : 12% ESR : 70 he prescribed CEFTUM 500. i started the course from yester day night. to day i got severe head ache.i am in worry whether to stop the tablet,can you kindly suggest any alternative.