Welcome to HCM
After going through history you have renal stone 6 mm along with stone there may be UTI ( Urinary tract Infection
) as you have used multiple drugs and developed allergic rash
, your doctor is right as chances Analgesic
may be culprit so use only paracetamol
for pain and pain is severe there are other drugs to give you.
In UTI we should do a Urine R&M to see pus cells and culture of urine and sensitivity to know best drug to treat infection in the mean time urinary antibiotic of Quinolone
Please take plenty of water as it help to clear infection and may propel stone also.
Taste change may be due to side effect of drug so you can change antibiotic in consultation with treating doctor.
Symptomatic relief of itching may be there by H1 Blocker like Avil.
Please do not worry hopefully will improve in few days time.