Hello, pricking pain during intercourse could be due to inadequate lubrication or even vaginitis. So a vaginal swan culture is recommended before any lubricants are tried for.
It may be a sign of urinary tract infection. Get urine culture and sensitivity test & ultrasound kub done. Consult a pediatrician immediately for the treatment.
Heat. Some home remedies for UTIs can help to ease symptoms, such as pain and discomfort, though these may not aid recovery. For example, applying a heat pad to the bladder or pubic area can help to relieve pain and discomfort temporarily.
Do the following--
1. you maintain high grade of personal hygiene.
2. Do change your undergarments at least 2 times a day
3. Wear cotton underclothes.
4. Stay hydrated. Drink plenty of fluids.
5. Keep the area dry.
For more details you can consult me.