is there any correlation it would start a bout of CH?

Heviran is med iN europe though not sure what is the name of it in states or canada.

But it is anti-viral med for shingles and other stuff.

Any insight would be really helpful

Very doubtful.  Heviran=Acyclovir (brand name is Zorvirax), which is used for treatment of Herpes/shingles/etc.

so is it safe to take Zorvirax

As I got shingles, though I am doubtful it is shingles just one bubble with that 'organic fluid' thing and there was red area on skin but it is gone now after 3 days with the 'bubble' almost gone too, but my whole but itches.

And one doc told me to not take Zorvirax and other said it will secure me from Neuralgia that can happen after shingles.

What do you guys think?

Thank you for any answers.

We are not doctors, I'd ask the pharmacist or your doc.

Thanks for answer, I went to local pharmacy and asked about that, telling them I have Cluster Headaches, they first asked what is that  ;D LOL then I explained it is similar to migraines but not completely close to it, neuro-vascular headache that comes in 'clusters' during spring for me sometimes autumn guess its some kind of weather heavy change but not always since they comes every 2 years.

Anyhow they said they don't think so comparing to migraines that it could cause headaches, but migraines are also triggered from diff stuff thatn CH so I did not get clear answer, ah well, taking the drops so will see... if I avoid being hit hardcore :<