Itching all over body. Feeding mom! Help

Started with vaginal itching and other body parts too. I Was prescribed candid B cream for vaginal itching and lecope m tablet for two days at night. Itching subsided for a week and again worsened. So repeated another dose of lecope m for 5 days. Again itching worsened after 10 days. So my gynec prescribed Xyzal 10mg for 5 days. Itching again started in a weeks time. So she changed tablet to montair FX at morning and okacet at night along with calosoft lotion. Nothing worked out and adding to it again I got severe itching on my vagina, area around my genitals, bumps on skin as a result of scratching.. and now on my fingers, face and neck tooo. I have got tiny red dots in clusters on my feet.. itching is hell. I'm a feeding mother for a 7 month old baby. Pls help what kind of allergy is this.. for vaginal itching I'm currently taking canditral 200 last two days