Sweating

I know this is not a great subject but this summer sweating has been an awful reality for me.  I'm not sure if its the medicine I'm taking or if its being overweight but I'm miserable.  I know last summer I wasn't like this but I was also about 35 lbs lighter then.  Could 35 lbs really make this much difference or is this just an extra hot summer?  I know here the humidity has been so bad everyday that you just don't even want to leave the house.  Today at school we had to go outside and do some practice exercises with our cameras and I knew that I was going to be sweating buckets; luckily I bought this stuff when I got married that you spray on your face and its suppose to keep you from sweating so I tried it today and it did help alot.  It's so embarassing to be drenched in sweat and everybody else seems to not even be hot.  One girl today actually had a jacket on when we went outside, how crazy is that?  Honestly this is probably one of my biggest motivations right now for losing weight because I'm tired of being embarassed all the time.  I don't mind sweating when I'm exercising, I actually like it because it means I'm working out hard but I'm sick of looking like someone has dumped a bucket of water over my head all the time.  If it is my medicine then I'm in trouble because I'm definitely not going off of it.  All I can say is thank God its going to be fall soon and then by the time next summer gets here all this weight will be gone and hopefully I won't have to worry about this sweating problem ever again.  Does anyone else seem to have this problem and if you do what do you do about it?