With long-term use of topical steroid the skin may develop permanent stretch marks (striae), bruising, discolouration, or thin spidery blood vessels (telangiectasias).
Topical steroids may trigger or worsen other skin disorders such as acne, rosacea and perioral dermatitis.
Skin colour may change. This is more noticeable if you have dark skin. from
patient.info/health/topical-steroids-for-eczema
.
Never had petechia so cannot comment.
I have to say with a count of 106 you may be worrying unnecessarily. ITP treatment is rarely instigated until count is below 30
See
www.ebmt.org/Contents/Resources/Library/Resourcesfornurses/Documents/ITP%20Handbook.PDF
>50 No treatment
30–50 No treatment or prednisone (1–1.5 mg/kg/day) for patients at higher risk of haemorrhage (e.g. hypertensive, lifestyle factors, concomitant medication use, head trauma or scheduled for surgery)
<30 Prednisone (1–1.5 mg/kg/day)
Haemorrhage or life- threatening bleed
Emergency treatment:
Platelet transfusion
Intravenous immunoglobulin (IVIg; 1 g/kg/day for 2–3 days) Methylprednisolone (1 g/day for 3 days)