What to do about underarm sweating!!?

K....so have an issue with underarm sweating. I have tried Certain Dri but t doesn't really work and sometimes it STINGS. lately its been very irritating and I just can't use it. My friend told me about the Botox injections and that she doesn't sweat at all! So I am getting a consultation soon :) The only problem is.... get the consultation and then I have to go to camp for 2 weeks. What do i do!? dont want to be sweating like a pig at camp :(