1. Since it is of recent origin following
viral fever some hot packs, massage and
muscle relaxant creams(relaxyl) may be tried along with mild analgesics/anti-inflammator(ibuprofen 200 mg BD)
Give plenty of water orally and wait for a week -it should subside;
if doesn't or aggravates then
See a
neurologist who may get EMG done to see which group of muscle is affected,
repeat CPK and also get serum ANA to r/o auto-immune disease, serum creatine for kidney function
2.Complication is not so common unless muscle damage (rhabdomylosis) occurs , in which case Kidney is often affected, so
serum creatinine may also be done now to see kidney functioning.
Although
rhabdomyolysis rarely results from myositis, it can cause permanent kidney damage. People with rhabdomyolysis are hospitalized in order to receive continuous intravenous fluids in large amounts.(maintain child ,therefore ,on plenty of fluids orally now)
3.Unless serum ANA is high, thee are little chances for re-occurrence