Heya young lady ..
While i am not disagreeing with your diagnosis of "ring worm", i must freely admit the pic is not of a great quality.
Secondly the shoulder is not a common site albeit use of OTC products like multipurpose creams containing steroids may well have 'masked' the orginal pattern and this could then be a condition we allude to as Tinea Incognito 🥸
Zocon (fluconazole) has developed a lot of resistance as far as fungal infections are concerned and would not be my first choice of antifungal and an antihistamine is just a temp solution.
Do feel free to connect Online directly using this App's INSTANT ONLINE Consultation or related Apps like Apollo 24/7 where you can also find me, 📥 more pics n details and will give you a prescription tailor made for you to help resolve this ASAP 🙏
Health Tips
Avoid OTC products, home remedies, self medication and Dr Google's suggestions 🙏