I Have Got Vaginal Tear Due To Lack Of Lubrication

i have got vaginal tear due to lack of lubrication and ph imbalance which got infected. its painfull and itching also. 5-6 months before i had same problem because i was on antibiotics for tonsilitis, then i was prescribed ceftum 500, emanzen, fusidic acid cream etc. and got immediate relief. but last time it was more worse along with cysts and pus.