Hi mama! Okay lang naman mag-cold water but I'd suggest checking with your OB muna since every body recovers differently, a few of us tried switching back to cold water at 6 weeks and some got okay lang, pero iba ang healing timeline ng iba. For the dryness and itchiness, try mo moisturizing agad after shower habang slightly damp pa ang skin, and if it gets worse, pwede ring magask sa doctor kung okay ba for postpartum skin mo. How's your recovery going overall?