TikTok and skincare forums drive a lot of self-diagnosis. Most users misidentify the actual condition — different skin issues look similar but respond to different treatments. Persistent problems benefit from a dermatologist appointment, not another internet rabbit hole.
Common mis-diagnoses
'Fungal acne': often actually hormonal acne or folliculitis. Treated differently. 'Rosacea': often actually sensitivity, perioral dermatitis, or seborrheic dermatitis. 'Perioral dermatitis': often actually contact dermatitis or eczema flare.
When to see a dermatologist
Skin issue lasted 2+ months despite consistent skincare. Spreading, painful, or significantly affecting quality of life. Self-diagnosed conditions that don't respond to recommended treatment. NHS dermatology referral is free but waiting lists are long; private consultation £150-250 for initial.
The internet is good for general education. It's mediocre at diagnosing specific skin conditions on your face. A 20-minute professional consultation often saves months of wrong treatment.