Yes, he should be treated as well for the infection or else you will get it again.
Please refrain from sexual intercourse until both of you are treated again.
Take 1 tbsp apple cider vinegar and 1 cup of water.
To be safe, boil the water and let it cool down to room temperature.
You may also use it when it is slightly warm. Add the tbsp of apple cider vinegar to this clean water.
Now rinse your vagina with this water.
Do this 2-3 times a day.
You can also take an ice pack, and cover it in a clean cloth and lay on the lips of your vagina for approximately one hour. You could also try immersing the clean cloth in witch hazel as this could help soothe the burning more quickly.
Let me know if you have any other questions.
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