It's usually better to increase the number of repetitions than the weight resistance when you're working out in the gym.
Many people get confused about what's a sprain and what's a strain.
The RICE technique is the best way of dealing with minor sports injuries. Sometimes the RICE technique won't be enough to deal with the pain and you'll need to add painkillers to your treatment. All painkillers will help ease pain, but aspirin and ibuprofen are particularly good at relieving inflammation, which makes them ideal for sports injuries. However, aspirin and ibuprofen aren't suitable for everyone, so check with your pharmacist before you take anything, particularly if you're taking other medicines or suffer from a medical condition. Some painkillers also come in cream and gel form, and are an excellent way of treating muscular pains.