Hi guys its tony just started rectiv yesterday and my you know hurts ten times more is that normal?

I did start last night using rectiv.and it feel likes got more stinging.im off from diltiazem due to allergic reaction and burning itch for 3 weeks before i switch rectiv.My CRS told me to use desitin since i dont have pain anymore.but i still have stinging on and off.so yesterday i got the rectiv and i feel more stinging.just wondering if this because im putting it inside.is anybody have an experience on this?any input on this gladly appreciated,thank you