Bad app doesn’t work

So far so good. Mild to no itching. I got bit 5 times on both legs in a span of 2min outside. I am very sedative to mosquito and other bits. I purchased this, as it was recommended by and REI employee. I used it as soon as I got in the car. It worked immediately. All the reddens, and bumps were almost gone with in minutes of using, and itching stopped immediately. I had use it for my second day. I have a really big bit. So I had to use it today again on that one bit only. I highly recommend!