welcome to healthcare magic,
the doctor has prescribed the medications to sort your illness, the pain will reduce frst the rash will take time to go as shingles
is a viral infection the acyclovir
cream would help to make the healing rapid.
the neurofon and panadeine forte
will reduce the pain.
hope to have answered your query.
get well soon.
note - a hiv test
would be good to be done.