Hello and welcome to healthcaremagic
Yes, indeed tenovate should not be used on face, infact using it on face and that too for acne is an absolute NO for me! It contains a potent steroid, 
clobetasol propionate which can cause steroid related side effects like Acne, 
photosensitivity, hirsutism, skin thinning, 
telangiectasis etc.
I would suggest that you use a topical broad spectrum sunscreen throughout the day, that which offers both UV B as well as UV A protection, till your skin returns back to normal, which might take a few days.
An OTC antihistamine e.g cetrizine 10mg once daily would help you symptomatically with the itch.
If I was the treating doctor I would have started you on 
oral antibiotics for acne e.g either doxycycline or 
azithromycin, would be good for acne flare.
Topically you could use clindamycin phosphate 1% gel twice daily over active acne.
Use a gentle cleanser for  face wash e.g cetaphil cleansing lotion, twice daily.
regards