Hello. Thank you for your query.

Apart from the testicular pain, the symptoms that you have described are typical of bacterial pharyngitis. It presents with throat infection, difficulty with swallowing, red spots in the pharynx (inflammation). The red spots in the skin are the after effects of the bacterial infection. The most common bacteria involved in this is streptococcus. The probability of rheumatic fever, post infection with streptococcus makes it mandatory to take antibiotic therapy for an extended period of time. It is advised to consult your GP for the lesions to get examined and managed.

The testicular pain you were talking about got nothing to do with the throat infection or fever. A cyst in such an young age is usually uncommon unless you are immunocompromised, as there is probability of Chlamydial and tubercular infection in those type of individuals. It could be from an unidentified injury (as you are a football player) that ultimately lead to the development of cyst. However I would recommend you to visit a surgeon for the cyst to be examined and upon referral to get an ultrasound of the testis done to rule out other possibilities.

Hope this helps.