Lumpy arms?

I asked a fitness expert several weeks ago how to get rid of "wings" on my upper arms. I was told to use a stretch "rope" above my head several times a day. Another lady did that exercise, and she said she got rid of her "wings." I tried it and within two weeks, my arms just above and below my elbows became very lumpy and unsightly. Does anyone know of any exercise to get rid of these lumps? I have stopped the stretch rope exercise. (I much prefer the wings to the lumpy sight.) I started using the UBE at the gym for upper arm exercises yesterday, but it's far too soon to tell if it will make my lumpy arms better. Any suggestions are very welcome. Thanks.