Hi Farida
Sorry to hear about your son’s illness. He is obviously very poorly at present. Not wishing yo make you more worried I must say that it’s a horrid condition to experience but his symptoms sound quite typical. This can happen and unfortunately can sometimes last for some time. I expect he is experiencing constant violent room spinning vertigo each time he tries to open his eyes. That would be why he says his vision is shaky. I have experienced that myself many times. These vestibular attacks if he has been told he has Vestibular Migraine can often last up to 72 hours sometimes longer. And sometimes the attacks become back-to-back with little respite between.
As he has been prescribed both Venlafaxine and Flunarizine I can only suppose he has seen a specialist. If that’s the case he has had a diagnosis and been prescribed preventatives which mean he is in the best hands and most likely to begin to show some signs of improvement quite soon. As your introduction was so brief I’ve no way of knowing what information you have already been given but you need to bear in mind these drugs are designed to prevent future attacks. They will not stop his current attack. Ask your own doctor for some painkilling abortive remedy which he can take now in addition to the Venlafaxine and Flunarizine. If you have no medical access speak to a pharmacist about Over The Counter migraine relief medication you can buy. Failing all else you could try getting him yo take Soluable Aspirin. Once he can get some control over the head pain the vertigo - shaky Vision - may well stop and he will be able to keep his eyes open again. I well remember sitting/lying with both eyes closed about three full days with each attack. Once diagnosed I was prescribed a preventative medicine and it was then several years until I had another attack. So there is hope, plenty of hope. Try not to worry too much. Him keeping his eyes closed is just his best way currently to avoid the horrendous symptoms he’s suffering.
Hope the attached might help. Feel free to come back with further questions and don’t worry. We do have parents on here researching on behalf of suffering children and vice versa. We are all quite happy to help all in difficulty.
Southern Pain Society Migraine Guide