For the first two weeks I struggled and struggled with stinging. As the stinging stuff backed off, the lumps began. Big ones!

With each passing month, the stings got less and less, but the lumps persisted for about 6 months. About six months in all of a sudden, my body stopped fighting. The lumps dropped down to 10% of what they were.

I am 10 months in now, and its more common than not to have a good shot, and the lump goes away in a day or two. It still stings but only for a min. Its not nearly as intense as it was.

I hope you are finding this drug easy to take, easy to tolerate. I too am a nurse, and have used a variety of techniques. from AI to manual. 45 degrees to 90. shallow to deep. Z track to straight in. its a learning process.