Hi, Thanks for posting in HCM. I understand your concern. Swelling in the tonsils does not have any relation to the exposure to the sunlight. It could be due to inflammation of tonsils following infection in the pharynx (throat). You need not worry about it much. Kindly do the following to overcome it. 1. Salt water gargling with warm water twice daily. 2. Take any decongestant medication. 3. Use medicated lozenges to soothen the throat. 4. Use regularly Chlorhexidine mouth wash to maintain good oral hygiene. 5. Avoid intake of cold items like cool drinks and ice-creams. Gradually, your symptoms should subside and be back to normal. Hope the information provided would be helpful. All the best.