Itchiness of Skin While Pregnant

Mommy ako currently nagkaron bigla ng mga rashes and butlig butlig sa face and neck and yung kati niya nakakaiyak na nakakagalit, third trimester ko na as in nagising ako one day dami na rashes. Sabi ni ob ko baka daw allergy so she prescribed me antihistamine but after three days wala pa din nangyare although nawala yung maga sa eyes ko (lumala siya bec of chicken and egg) so i tried tea tree oil soap. So far mejo nawawala na and nabawasan yung itchiness. Mahapdi siya though pag sinabon but honest to goodness nakakarelief afterwards. Yung aveeno relief na gel laking tulong din, pinangsesecond na sabon ko yon. Ask yout ob pa din kasi baka allergy din yan or what. Anyway sana makatulong din sayo.