After 4 iv iron treatments, my normal moisturizers are "pilling" up on my skin like the little balls on an old sweater. My skin will not absorb anything in cream form at this point and it's getting worse... my day cream with SPF absorbed smoothly yesterday (before my 4th treatment) and would not absorb this morning at all. Is there a reason for this reaction? Is it temporary? What should I do for SPF?