Hi there.
What you describe dear are most likely ingrown hair or pseudofolliculitis.
Drinking water will not help get rid of these bumps.
Immediately after shaving, waxing, do try using a mild hydrocortisone-antibiotic combination cream for 24 hrs.
Then, shift to a cream called Sensibio.ds from a company called Bioderma & used this liberally in the region.
Together this will help keep your vaginal bumps in check.
As for the bumps on the face, a visual will be better so please do approach the
dermatologist nearest to you...you may use this HCM site to source one & if in the Bangalore region, feel free to drop in on me @ Vikram Hospital.
Do try using a 2.5% Benzac-AC cream as a spot application evenings for the face lesions.
Good Luck & wish you a clear skin soon.
Dr Praveen Rodrigues MD