Hello sir,
Carrying angle in males should be around 10-12°.
*Take hot packs to ease the joint
*active exercises for arm and forearm muscles
*You can wear correction splints to correct it
*If you have other symptoms like numbness in your fingers,and any other signs of parasthesia like tingling ,weakness then consult an orthopedic surgeon and go for surgical correction..cubitus valgus can lead to Ulnar neuropathy sometimes.
Next Steps
consult a physio in person and get assessed first.