21 weeks pregnant and suffering from vaginal discharge itching and burning but no smell so consulted my doctor She prescribed cansoft-cl suppository for 3 days  then hhzole for 7 days cream and absorb powder for excessive sweating and told me to apply while going outside. But it worked and I felt fine but after 10 days now I feeling the same again. Also the doctor told me not to apply coconut oil as it can lead to more infection.Also changing underwear 3 times and also washing 2 times using lactacyd .Now my question is how can I prevent frequent infection naturally?