Oh, as for other repellents, pretty much need higher than 25% Deet. 25% is only good for about 1-2 hours, then needs to be reapplied all over. If you can find some product with 75-98% Deet buy it. It doesn't work any better than the 25%, but it works longer! Baby oil or Skinsosoft with some deet is good for around your ankles and lower legs, when it comes to the sandflies. In that case, you aren't so much deterring them, as drowning them in the oil.
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A fish and a bird can fall in love, but where will they build their nest?