1998 Dodge Caravan

I am having a probelm with my 98 grand caravan, 144,000. The brake lights are not working. I honestly have no clue how long they havent worked but it hasnt been very long I just had an inspection done a month or so ago. The fuse keeps blowing as soon as you hit the brake pedal. My husband and I went through 7 fuses trying numerous things, it finally got to dark to see anymore and my huisband replaced everything and put yet another fuse in and it worked then today, 2 days later (hasnt moved since that night) I had my neighbor check b4 I left to see if they were working and it has blown another fuse. I dont know what could be causing it, and it is baffling my husband.