Yes, it is generally safe to apply aloe vera gel after using Mrg SPF 16 skin-lightening cream. Apply the cream first and allow it to absorb fully, then gently apply aloe vera gel to soothe and hydrate your skin. If you have sensitive skin, existing skin conditions, or notice any redness or irritation, perform a patch test first or consult a dermatologist before using both products together.

Burning, heating sensations, and skin darkening after using this cream suggest that your skin is reacting negatively, so you should stop using it to avoid further irritation or damage and consult a doctor, who will assess your skin and plan the appropriate treatment accordingly.