Conclusion
Ringworm [1] is very contagious. It can be transmitted by skin contact with an infected person or by sharing items with infected people. The fungus can be carried on surfaces such as beddings, towels, combs and clothes for a considerable amount of time. You can also get it from pets or from walking barefoot on soil containing the fungi.
Ringworm complications are rare, but untreated ringworm usually spreads to other areas of the skin. Secondary infections may also develop from broken skin. If you notice any signs of ringworm, you should consult a dermatologist to discuss treatment options. Treatments for ringworm are available and are usually effective.
References:
[1] https://www.webmd.com/skin-problems-and-treatments/what-you-should-know-about-ringworm
[2] https://www.cdc.gov/fungal/diseases/ringworm/symptoms.html
[3] https://www.aad.org/public/diseases/a-z/ringworm-symptoms
[4] https://www.cdc.gov/fungal/diseases/ringworm/symptoms.html
[5] https://www.medicalnewstoday.com/articles/158004#4
[6] https://www.medicalnewstoday.com/articles/158004#4
[7] https://www.aad.org/public/diseases/a-z/ringworm-symptoms