The Fix: If your painful sunburn has turned your skin into a peeling mess, Waldorf recommends adding mega doses of moisture. If the area is irritated, she suggests applying Vaseline Pure Petroleum Jelly, $6.49, to the area.

Once the irritation has subsided, "switch to an alpha-hydroxy acid moisturizer," she says (try Amlactin Ultra Hydrating Body Cream, $14.99). It will help gently exfoliate the peeling, flaking skin while deeply moisturizing.

Waldorf explains that rosacea often flares up during the heat of summer months because extreme temperatures are one of the main triggers -- along with spicy foods, alcohol and stress.

The Fix: If you're having a severe flare-up, she recommends visiting your dermatologist for oral antibiotics (like Doxycycline) and a topical (either an antibiotic like Metrogel or Noritate or azelaic acid like Finacea).

Your doctor will taper you off the oral medication once your skin starts to clear, but you will likely need to continue with the topical antibiotics. "It takes about seven to 10 weeks for the topical to kick in," she says.

The Fix: "Once [your skin is] 'leather,' there is a limit to what you can do to improve it," Waldorf says. She does, however, recommend using a retinoid (she like prescription Renova or Avage), and antioxidant cream (try Prevage Anti-Aging Daily Serum, $162), and a peptide-rich product (try Olay Regenerist Daily Regenerating Serum, $22.99). The use of these three active ingredients will help exfoliate skin by improving cell turnover and helping to build collagen.

Waldorf also explains that laser treatments like Fraxel Restore (to improve skin texture and color with minimal downtime), VBeam (for red discoloration) and Q-switched Nd:YAG (for brown spots) can also be helpful in reversing a leathery-looking skin texture and tone.