Answer
No. Topical minoxidil should be applied only to normal, healthy scalp skin, not skin that is inflamed, infected, painful, sunburnt or otherwise damaged.
Sources for this answer
- Regaine for Women Once a Day Scalp Foam 5% w/w Cutaneous Foam — Current selected SmPCemc · Summary of Product Characteristics
- Minoxidil 5% w/v cutaneous spray, solution — Current selected SmPCemc · Summary of Product Characteristics
- Regaine for Women Regular Strength — Current selected SmPC