Having problem in relation to neck etc.

My mother is 47 year old. Previous conditions- she has slip disc from 20yrs. NOW- From 3-4 months she has pain in head and consulted to a neurologist who suggested for MRI of backbone because earlier slip disc problem he said this problem is may be created by backbone/slipdisc. MRI says- 1. Lumbar Iordosis lost 2. Grade I antrrolisthesis of L5 iver S1 seen. And doctor prescribe some medications- 1 Pregabalin 2.tolperisone 3.telmisartan hydrothiazide 4.nortimer 5.placida And still she has pain in her back head ,like in occipital lobe and neck as well she has sensation like ants biting or electric shock type feeling.and pain occurs suddenly and doesn't go for loger time. Now, you suggest what to do, sge is taking lots of stress .Thanku