The pain inside the vagina is caused by the damage to the inner wall of the vagina during sexual intercourse, and the lack of vitamin B can cause vaginal dryness and vaginal pain after sexual intercourse. It is best to have a routine white belt examination. It is best to use anti-inflammatory suppositories or antifungal suppositories to treat vaginitis, and it is recommended to douche the vagina with cleansing. It is advisable to exercise properly, change your underwear regularly, wear cotton and breathable underwear, and not wear tight jeans to avoid local sweating that may affect recovery.