I've been on isotretinoin for a month now and I have noticed my face and hands are slightly red/pinker. Any suggestions?

Doctors often refer to the dryness that occurs with isotretinoin and retinoids like Retin-A as the retinoid reaction. Although normal, the dryness can lead to a feeling of discomfort that can ultimately compromise your compliance. Retinoid reaction includes:
DrynessRednessItchingBurningDiscomfortIn my office in Beverly Hills, I prescribe Accutane quite a bit for cystic acne and inflammatory scarring. Patients are advised to moisturize frequently with a non-oily moisturizer such as Elevase Moisture Booster, which we use in our office. Applied liberally on the face, the ceramides are soothing and relieve discomfort when possible. 
Best, 
Dr. Karamanoukian
Realself100 Surgeon

This is a common "side effect" from the medication or what I tell people is expected.  Moisturizer is important.  This will go away after the medication is stopped.  Best, Dr. Emer.

Your redness can be due to sun sensitivity or, more likely, irritation from the medicine.  This is not an uncommon side effect.  Make sure to use sunscreen and a moisturizer every day, and moisturizer again at night.  Avoid irritating washes, exfoliators, and, as per your doctor, even topical medications.