Hi ! There is no harm in deworming once. But the baby is running constant high temperature and is not well. If this continues she may land up in dehydration
. There has to be some kind of infection in the body to have such high temperature. After consulting your doctor, please get her urine tested for any infection. Also he may consider doing some routing blood tests such as DC, TLC
, Hb, smear for MP, PS, and also some tests for Enteric fever
. Also the throat infections in a baby can give rise to such problems. Do not delay consulting your family physician specially for patients in this age group. All the best.