Suggest Treatment For Rashes On Face

Hi i am Khushboo and i am 23 years old. I have got sudden rashes on my face, not able to diagonise if it is a pimple or any allergy. I have consulted a skin doctor and have been in medication since a month. I have already taken about 12 azithral 250 (3 dose in a week) and have been applying persol AC 2.5% gel. By applying this particular gel the rashes got reduced and has turned redish black color. On another visit to doctor. He suggested me to take another 12 tablets of azithrorite 250 (to be taken after breakfast) along with 24 tablets of vizilac (to be taken once in day and night for diarrhoea which i had earlier when i was taking azithral). When i took Azithrorite for first two days i felt kind of giddiness as well as vomiting sensation and i also notice that my rashes has grown more now with many red spots. Please let me know if i should continue my medication?