So sorry to hear of your allergy....
I clip corners at the selvage, sometimes use pinking rotary blade. Both work fine.
The wrinkling starts in the washer when the fabric is all twisted. Try to straighten out the fabric before putting in the dryer, or the twisted portions stay that way in the dryer, thus setting the wrinkles.
Use vinegar and water spray when ironing to get rid of stubborn wrinkles. Or use Mary Ellen's Best Press...I always try it first.
D in TX